Where does “vert” come from?

Vert comes from Old French vert, from Latin viridis meaning green, ultimately from Proto-Indo-European weys-.

vert (English): A green colour, now only in heraldry; represented...

Definitions

  1. A green colour, now only in heraldry; represented...

Ancestry of “vert”, step by step

vert traces back through 3 separate lines of ancestry.

via English vertebrate

StepLanguageWordMeaning
1EnglishvertebrateHaving a backbone; An animal having a backbone
2Frenchvertèbrevertebra
3Latinvertebrajoint; vertebra
4Latinvertōto turn, turn oneself, direct one's way, to turn about, turn around, revolve
5Proto-Italicwertōto turn
6Proto-Indo-Europeanwert-to turn, to rotate
7Proto-Indo-Europeanwer-to burn; to cover, heed, notice; squirrel

via Middle English vert

StepLanguageWordMeaning
1Middle EnglishvertGreen-coloured; Any plant having green leaves;...
2Old Frenchvertgreen; green, of a green color
3Latinvirdis
4Latinviridisgreen; young, fresh, lively, youthful
5Latinvireōto be verdant, green; to sprout new green growth
6Latin-idae

via Latin vertere

StepLanguageWordMeaning
1Latinvertereinflection of vertō: ## third-person plural...
2LatinvertoI turn, revolve; I turn around; I reverse
Every word from Proto-Indo-European wer-