Where does “tailwind” come from?

tailwind (English) comes from English wind, from English farm, from Middle English ferme, from Old French ferme, from Medieval Latin ferma, from Latin Firma, from Latin Firmus, from Proto-Italic fermos — to support; to hold.

tailwind (English): a wind that blows in the same direction as the...

Definitions

  1. a wind that blows in the same direction as the...

Ancestry of “tailwind”, step by step

tailwind traces back through two separate lines of ancestry.

via English wind

StepLanguageWordMeaning
1EnglishwindReal or perceived movement of atmospheric air...
2EnglishfarmA place where agricultural and similar activities...
3Middle EnglishfermeA lease; the renting of land
4Old Frenchfermelease; the land leased; farm
5Medieval LatinfermaAlternative form of firma
6LatinFirmatax, tribute
7LatinFirmusstrong, powerful
8Proto-Italicfermos
9Proto-Indo-Europeandʰer-mo-sholding
10Proto-Indo-Europeandʰer-to support; to hold

via English Tail

StepLanguageWordMeaning
1EnglishTailA Chinese constellation coinciding with the tail of Scorpius, one of the 28 lunar mansions and the tail of Azure Dragon
2Middle EnglishtaylA tail; The back side or reverse of a creature; A...
3Old Englishtæġltail
4Proto-Germanictagląhair; ponytail; hair of a tail; tail
5Proto-Indo-Europeandoḱ-hair of the tail
6Proto-Indo-Europeandeḱ-take; perceive
Every word from Proto-Indo-European dʰer-
tailwind — Etymology, Origin & Word History | Etymology Explorer