Etymograph

English

mainplane

From main + plane.

A compound of main + plane

Middle English mayn

English main

Proto-Indo-European *pleh₂- ‘flat’

Proto-Indo-European *pl̥h₂nós

Proto-Italic *plānos

Latin plānus ‘plain’

Latin plānum ‘flat surface’

English plane

Today it means

noun The wing of an airplane that provides most of the lift.

Language periods are conventional ranges, not dates for this word.

Etymograph / mainplane