Where does “bisannuel” come from?

bisannuel (French) comes from French annuel, from Late Latin annualis, from Latin annus, from Proto-Italic atnos, from Proto-Indo-European h₂et-no-, from Proto-Indo-European h₂et- — grass.

bisannuel (French): biennial: Happening every two years / Lasting for...

Definitions

biennial: Happening every two years / Lasting for...

Ancestry of “bisannuel”, step by step

Step	Language	Word	Meaning
1	French	annuel	annual, yearly
2	Late Latin	annualis	one-year-old
3	Latin	annus	year; time; season
4	Proto-Italic	atnos	year
5	Proto-Indo-European	h₂et-no-	—
6	Proto-Indo-European	h₂et-	grass

Words derived from “bisannuel”

bisannuellement
bisanual

Every word from Proto-Indo-European h₂et- →Every word from Proto-Indo-European h₂et-no- →Every word from Proto-Italic atnos →