plan–2 {level, flat}: airplane, esplanade, explanation, hydroplane, plan, planarian, plane (all senses), Plano ●same as plain–2 ●see also place–, plat–, platy– || 
L planus : flat, level & planare : to plane, to make level IE *pelə– : flat, level, to spread out
* Unattested, hypothesized
† Unknown origin
1 entry found.
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