Where does “mailplane” come from?

mailplane (English) comes from English plane, from Middle English plane, from Old French plane, from Latin platanus, from Greek πλάτανος, from Ancient Greek πλάτανος, from Ancient Greek πλατύς, from Proto-Indo-European pléth₂us — flat.

mailplane (English): An aircraft that delivers mail

Definitions

  1. An aircraft that delivers mail

Ancestry of “mailplane”, step by step

mailplane traces back through two separate lines of ancestry.

via English plane

StepLanguageWordMeaning
1EnglishplaneOf a surface: flat or level; A level or flat...
2Middle Englishplane
3Old Frenchplane
4Latinplatanusplanetree, sycamore
5Greekπλάτανοςplane tree
6Ancient Greekπλάτανοςplanetree
7Ancient Greekπλατύςwide, broad; flat, level; broad-shouldered
8Proto-Indo-Europeanpléth₂usflat, broad
9Proto-Indo-Europeanpleth₂-flat

via English mail

StepLanguageWordMeaning
1EnglishmailA bag or wallet; A bag containing letters to be...
2Middle Englishmal
3Old Englishmālspeech, contract, agreement; suit, case, action,...
4Old Norsemállanguage; speech; matter, affair
5Proto-Germanicmēląmeasure, measurement; time, occasion; point in...
6Proto-Indo-Europeanmelh₂-to grind, to crush
7Proto-Indo-Europeanmel-soft; tender; weak; to deceive; to rub
8Proto-Indo-Europeanmey-to strengthen; to bind; to change, exchange
Every word from Proto-Indo-European pleth₂-Every word from Proto-Indo-European pléth₂usEvery word from Ancient Greek πλατύς