Where does “licorne” come from?

licorne (Portuguese) comes from French licorne, from Old French unicorne, from Latin ūnicornis, from Latin ūni-, from Latin ūnus, from Old Latin oinos, from Proto-Italic oinos, from Proto-Indo-European óynos — one; single.

licorne (Portuguese): unicorn

Definitions

unicorn

Ancestry of “licorne”, step by step

Step	Language	Word	Meaning
1	French	licorne	unicorn
2	Old French	unicorne	unicorn
3	Latin	ūnicornis	One-horned
4	Latin	ūni-	one; uni
5	Latin	ūnus	one, single
6	Old Latin	oinos	one
7	Proto-Italic	oinos	cardinal number 1 Previous: n/a Next: *duō;...
8	Proto-Indo-European	óynos	one; single

Every word from Proto-Indo-European óynos →Every word from Proto-Italic oinos →Every word from Old Latin oinos →