The Cognātarium

dactyl– {finger}: adactylous, artiodactyl, dactyl, dactylogram, dactylography, dactylology, perissodactyl, polydactyly, pterodactyl, syndactyl, zygodactyl date (fruit) || From Gr daktylos : finger

dam–1, demn– {damage, harm}: condemn, damage, damn, damnatory, indemnify, indemnity || From L damnum : loss, damage, injury To damnare : to cause loss or injury; at law, to condemn, to sentence To condemnare : to condemn From cum : intensive prefix + –demn (comb. form) From damnaredamage From OFr From damnum

dam–2 {lady, mistress}: dam (animal mother), dame, damsel, madam(e), Notre Dame demijohn Fr. mademoiselle, mesdames see also domin–, don–2 compare sir– || From ME From OFr From L domina : lady From fem. of dominus : master of the house, lord, master From domus : house, home

dat– {to give, something given}: data, datary, date (all senses except the fruit), dative, datum, mandate (→mand–) same as dition– see also don–1, dor–, dos–2, dote–, dow– || From L data, fem. of datus (neut. datum), pp. of dare : to give

de– {god}: Agnus Dei, Deanne, deicide, deify, deism, deity, Deo Volente, deuce (oath), deus ex machina, Gloria in Excelsis Deo see also di–1 || From L deus : god, deity

dear– {valuable, precious, hence: scarce}: dear, dearth, endear || From ME dere From OFr deore : precious, costly, beloved; akin to Du duur, Ger teuer

deb– {to owe}: debenture, debit, debt, debtor, indebted || From L dēbēre : to owe To dēbitum : that is owed, debt; dēbitor : one who owes, debtor

dec–1 {ten}: decade, decagon, Decalogue, decanal, decapod, Decapolis, decathlon, December, decibel, decimal, decimate dean see also dodec– || From L decem : ten & Gr deka : ten

dec–2 {proper, suitable, beautiful, elegant}: decent, decency, décor, decorate, decoration, decorum, indecorous || From L decēre : to be fit, proper, seemly To prp. decens (gen. decentis) : fitting, proper; decus (gen. decoris) : that which adorns or beautifies, distinction, honor

del– {to wipe out}: dele, delete, indelible || From L dēlēre (pp. dēlētum) : to blot out, to efface, to destroy

delt– {the Greek letter delta: Δ}: delta, deltoid || From Gr delta; of Semitic origin, as in Heb dāleth (ד), fourth letter of the alphabet

dem–1 {the people}: demagogue, demiurge, democracy, demographics, endemic, epidemic, epidemiology, pandemic || From Gr dēmos : people, district

dem–2 {to bind, hence: a band for the head}: anadem, diadem || From L From Gr dein : to bind

demi– {half, not complete, less than full}: demigod, demimondaine, demimonde, demisemiquaver, demitasse, demivolt unrelated: demijohn, demiurge || From OFr demi– : half From L dīmidius : halved, divided, separated in the middle From dis– : separate, apart, in different directions + medius : middle

demn– see dam–1

demon– {divinity, spirit, demon}: demon, Desdemona, eudemonia, pandemonium Damon || From ME From LL daemon : spirit, evil spirit From Gr daimōn : divine power, fate, god

dendr– {tree}: dendrite, dendrochronology, dendrology, epidendrum, philodendron, rhododendron || From Gr dendron From dendreon : tree

dens– {compact, thick}: condensation, condense, dense, densimeter, density || From ME From L densus : compact, thick, close

dent– {tooth, to bite}: dental, denticulate, dentifrice, dentin, dentist, dentition, Dentyne™, edentate, indent, indenture, trident unrelated: irredentist see also odont– || From L dentis, gen. of dens : tooth

derm– {skin}: dermal, dermatitis, dermatology, dermatoplasty, epidermis, hypodermic, pachyderm, taxidermy || From Gr derma (gen. dermatos) : skin

destin– {to make fast, to fix down}: destination, destine, destiny, predestine || From L dēstinare : to fix, to determine, to settle, to appoint, to aim at

deuter– {secondary}: deuteragonist, deuteranopia, deuterium, deuterogamy, Deuteronomy see also di–2 || From Gr deuteros : second

dextr– {right [side]}: ambidextrous, dexter, dexterity, dexterous, dextrorse, dextrose compare sinistr– || From L dexter : right (side), to the right

di–1 {god}: Diana, dianthus, divine, divinity, prie-dieu Fr. dieu Span. dios see also de– || From L dīus : divine, divinity ( From Gr dios : god) & dīvus : divine, deified To dīvīnus : of a god, divine, divinely inspired To dīvīnare : to prophesy, to fortell

di–2 {two, twice, double}: diacid, diadelphous, diarchy, diaster, diatom, diatomaceous, diazinon, dibasic, dicephalous, dichloride, digamy, diglot, digraph, dilemma, dimerous, dimorphism, diphenyl, dipterous, diphthong, diptych see also deuter–, dicho–, didym–, diplo–, divid–, dodec–, du–2, dy–, tw– || From Gr di– From dis– : twice

di–3 {day}: ante meridiem, circadian, dial, diary, Dies Irae, diet (assembly), dismal, diurnal (→journ–), meridian, meridional, per diem, post meridiem, quotidian, ultradian compare noct– || From L diēs : day

di(a)– {through, across, apart, between}: adiabatic, diabetes, diabolic, diacritical, diadem, diadromous, diagnosis, diagram, dialect, dialogue, dialysis, diameter, diapason, diaphanous, diaphoresis, diaphragm, diarrhea, Diaspora, diastolic, diathermy, diatom, diatribe, dielectric, diet (food intake), diocese, diopter, diorama, direct, diuretic Span. Diablo || From L From Gr dia– (prefix) : through, across

dic–1 {to proclaim}: abdicate, dedicate, indicate, indices, judicial (→judic–), juridical, predicament, predicate, veridical, vindicate (→vindic–) index same as dict– || From L dīcere (pp. dictum, prp. dixi) (comb. form –dicare) : to indicate, to appoint, to say, to speak, to tell; also From related dicare : to dedicate, to consecrate

dic–2 {justice, right}: dicast, Eurydice, syndic, syndicalism, syndicate, theodicy || From Gr dikazein : to pass judgment From dikē : right, law, justice

dich(o)– {in two, apart}: dichasium, dichogamy, dichotomy see also di–2 || From Gr dicho– From dicha : in two, asunder

dict– {to say}: addict, Benedict, benediction, contradict, Dictaphone™, dictate, dictator, diction, dictionary, dictum, edict, indict, interdict, jurisdiction, malediction, mirabile dictu, obiter dictum, predict, valedictory, verdict, vindictive condition same as dic–1 || From L dīcere (pp. dictum, prp. dixi) (comb. form –dicare) : to indicate, to appoint, to say, to speak, to tell; also From related dicare : to dedicate, to consecrate

didac– {to teach}: Didache, didactic || From Gr didaskein : to teach

didym– {double, twin}: didymium, didymous, epididymis see also di–2 || From Gr didymos : twin

digit– {finger}: digit, digital, prestidigitation || From L digitus : finger, toe

dign– {worthy, to deem worthy}: condign, dignify, dignitary, dignity, indignant, indignation deign, disdain, infra dig || From L dignus : worthy To dignare : to deem worthy

dino– {terrible}: dinothere, dinosaur unrelated: dinoflagellate || From Gr deinos : terrible

diphy– {to bear two, to produce twice}: diphycercal, diphyodont see also di–2, physio– || From Gr di– : two + phyein : to bear, to produce

diplo– {two, double, twin}: anadiplosis, diplococcus, diplodocus, diploid, diploma, diplomacy, diplomat, diplopia see also di–2 compare haplo– || From Gr diploos : double To diploun : to double, to fold in two

dips– {thirst}: Dipsas, dipsomania || From Gr dipsa : thirst

direct– {straight, to direct, to correct}: bidirectional, direct, direction, directive, director, directory, directrix, indirect comb. of dia– + rect– same as dress–, droit– || From L dīrectus : straight, direct, straightforward From pp. of dīregere : to lay straight, to direct From di– : apart + regere : to guide, to direct From IE *reg– : straight, to lead straight, to lead, to put in order

disc–, disk– {disk}: disc, disco, discobolus, discophile, discothèque, discus, disk, diskette || From L discus : quoit, disk-shaped object From Gr diskos, akin to dikein : to throw

discipl– {pupil, learner, to learn}: disciple, disciplinarian, discipline || From L discipulus : learner (also: LL(Ec) : a disciple of Jesus) From discipere : to comprehend From dis– : apart + capere : to take, to hold

disk– see disc–

dition– {giving}: addition (→add–), edition (→edit–), extradition, perdition, rendition (→rend–), tradition, vendition perdu unrelated: condition same as dat– see also don–1, dor–, dos–2, dote–, dow– || From L –ditio, prp. of –dere (comb. form) From dare : to give

divid–, divis– {to divide}: divide, dividend, divisible, divisive, divisor, individual, indivisible device, devise see also wid– || From L dividere (pp. divisus, n. divisio) From di– : apart + videre : to separate

divis– see divid–

doc–, doct– {to teach}: docent, docile, doctor, doctoral, doctrinaire, doctrine, document, documentary, indoctrinate || From L docēre (pp. doctum) : to teach To doctor : teacher; doctrīna : teaching, knowledge, learning

doct– see doc–

dodec– {twelve}: dodecagon, dodecahedron, Dodecanese, dodecaphonic comb. of do– (two: see du–2) + dec–1 (ten) || From Gr dōdeka : twelve From dō– : two + deka : ten

dol–, dolor– {pain, sadness}: condolence, dol, doleful, dolor, Dolores (Delores), dolorimetry, doloroso, dolorous, indolent, Via Dolorosa || From L dolēre : to suffer pain, to grieve To pp dolens : suffering; dolor (gen. dolōris) : pain, ache, anguish

dolich– {long}: dolichocephalic, dolichocranial, Dolichotinae compare brachy– || From Gr dolichos : long

dolor– see dol–

dom– {house}: dome, domestic, domesticate, domicile, major-domo see also domin– || From L domus : house, household, home, dwelling, abode To domesticus : of the house, domestic; domicilium : place of residence; dominus : master of the house

domin– {lord, master, owner}: anno Domini, condominium, dominant, dominate, domineer, Dominic, dominical, Dominican Republic, dominion, dominium, domino, predominant domain Port. dom Dutch dominee same as don–2 see also dom–, dam–2 || From L dominus : master of the house, lord ( From domus : house, household, home) To dominium : rule, power, ownership

domit– {to tame, to subdue}: indomitable || From L domitare : to tame, to subdue From freq. of domare (pp. domitum) : to tame, to subdue, to conquer

don–1 {to give}: condone, donate, donee, donor, pardon see also dat–, dition–, dor–, dos–2, dote–, dow– || From L dōnare : to give as a present, to present From dōnum : gift; akin to dare : to give; To dōnatio (gen. dōnationis) : a giving, a donation

don–2 {lord, master, mistress}: belladonna, don (Oxonian), Donna, Don Juan, Don Quixote, madonna, prima donna Span. don Span. & Port. doña Ital. duenna same as domin– see also dam–2 || From It & Sp don, donna From L dominus : lord, master & domina : lady, mistress From domus : house

dont– see odont–

dor– {gift}: Dora, Doris, Dorothea, Dorothy, Eudora, Isadora, Isidore, Pandora, Theodore, Thermidor see also dat–, dition–, don–1, dos–2, dote–, dow– || From Gr dōros : gift

dorm– {to sleep}: dormant, dormer, dormitory, dormouse || From L dormire : to sleep To dormītōrius : of or for sleeping

dors–, dos–1 {the back}: dorsal, dos-à-dos (do-si-do), dossier, endorse, extrados, parados, tournedos || From L dorsum : the back (of a man or animal) • dos words From Fr dos From L dorsum

dos– see dors–, dos–2

dos–2 {to give}: apodosis, dose see also dat–, dition–, don–1, dor–, dote–, dow– || From LL dosis : something given From Gr dosis From didonai : to give

dot– {foolish, feeble-minded}: dotage, dotard, dote, doting, dotty || From ME doten to be foolish or feeble-minded From

dote– {to give}: anecdote, antidote, epidote see also dat–, dition–, don–1, dor–, dos–2, dow– || From L From Gr dotos : something given From didonai : to give

doubt– {doubt}: doubt, redoubtable unrelated: redoubt same as dub– || From ME douten From OFr douter From L dubitare : to doubt, to waver, to be uncertain

dow– {to give}: dowager, dower, dowry, endow, endowment see also dat–, dition–, don–1, dor–, dos–2, dote– || From ME douere From OFr douaire From L dōtare : to give a dowry, to endow From dōs (gen. dōtis) From dare : to give

dox– {to think, to have opinion, to praise}: doxology, heterodox, orthodox, paradox unrelated: doxy || From Gr doxa : opinion, praise From dokein : to seem, to think

dra– {to draw, to pull, to drag}: bedraggled, draft, drag, draggle, dragnet, draw, drawer, drawers, drawl, dray || all ult. From OE dragan : to draw, to drag; akin to Ger tragen : to bear, to carry & ON draga : to drag

dress– {to direct, to correct}: address (all senses), dress (all senses), dressage, dresser, redress same as direct–, droit– || From ME dressen : to make straight, to direct From OFr drecier From VL directiare From L dīrectus : straight, direct, straightforward From pp. of dīregere : to lay straight, to direct From di– : apart + regere : to guide, to direct From IE *reg– : straight, to lead straight, to lead, to put in order

droit– {right, correct}: adroit, droit, droit du seigneur, maladroit same as direct–, dress– || FromFr droit : right From L dīrectus : straight, direct, pp. of dīregere : to arrange, to direct straight, direct, straightforward From dis–, di– : separately, apart + regere : to guide, to direct From IE *reg– : straight, to lead straight, to lead, to put in order

drom– {to run, a running}: aerodrome, anadromous, catadromous, dromedary, hippodrome, loxodromic, palindrome, prodrome, syndrome, velodrome || From Gr dromos : a running, racecourse

dros– {dew}: Drosera, Drosophila || From Gr drosos : dew

dry– {tree}: dryad, dryopithecine || From Gr drys : tree, oak tree To L dryas (gen. dryadis) : wood nymph, dryad

du–1 {to lead}: conduit, endue, subdue same as duc–, duct– || From ME & OFr From ult. L dūcere : to draw along, to lead

du–2 {two}: duad, dual, duet, duo, duodecimal, duodenum, duologue, duplex, duplicate, duplicity deuce, double unrelated: duel see also di–2 || From L duo : two

dub– {doubt}: dubious, indubitable same as doubt– || From L dubitare : to doubt, to waver, to be uncertain To dubius : wavering, doubting, undertain, doubtful

duc– {to lead}: abducent, adduce, conducive, deduce, ducat, duchess, duchy, educate, educe, induce, introduce, produce, reduce, reproduce, seduce, traduce, transducer duke Ital. Il Duce same as du–1, duct– || From L dūcere (pp. ductum) : to draw along, to lead

duct– {to lead}: abduct, adduct, aqueduct, conduct, conductor, deduct, duct, ductile, inductance, induction, introduction, product, production, reduction, reproduction, seduction, viaduct same as du–1, duc– || From L ductum, pp. of dūcere : to draw along, to lead To freq. ductare : to draw or lead, esp. to lead home; ductor : leader

dulc– {sweet}: dulcet, dulciana, dulcimer, Dulcinea dolce, La Dolce Vita || From L dulcis : sweet

dur–1 {hard}: dura mater, duress, durum, epidural, obdurate, subdural dour compare pia– see also dur–2 || From L dūrus (fem. dūra) : hard, tough, strong

dur–2 {to last, to endure}: durable, durance vile, duration, during, endure, perdure, perdurable see also dur–1 || From L dūrare : to make hard, to harden, to last, to endure From dūrus : hard, strong

dy– {two}: dyad, dyarchy, hendiadys see also di–2 || From Gr dyo : two

dyn– {force, motion, power}: adynamia, aerodynamic, amplidyne, didynamous, dynamic, dynamite, dynamo, dynamometer, dynamism, dynasty, dyne, heterodyne, superheterodyne unrelated: anodyne || From Gr dynamis : power, strength From dynasthai : to be able

dys– {difficult, faulty, bad}: dysentery, dysfunction, dyslexia, dysmenorrhea, dyspepsia, dysphoria, dyspnea, dystrophy || From Gr dys– : bad, hard, unlucky

Unattested, hypothesized
† Unknown origin

85 entries found.

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