Where does “erbour” come from?

erbour (Middle English) comes from Old French erbier, from Old French erbe, from Latin herba, from Proto-Indo-European ǵʰreh₁- — to become green, grow; to grow; to green, to grow.

Ancestry of “erbour”, step by step

Step	Language	Word	Meaning
1	Old French	erbier	field, meadow, kitchen garden
2	Old French	erbe	grass; herb
3	Latin	herba	grass, herbage; herb; weeds
4	Proto-Indo-European	ǵʰreh₁-	to become green, grow; to grow; to green, to grow

Every word from Proto-Indo-European ǵʰreh₁- →