Where does “tricorn” come from?

tricorn (English) comes from French tricorne, from Latin tricornis, from Latin tri-, from Latin trēs, from Proto-Italic trēs, from Proto-Indo-European *tréyes.

tricorn (English): A three-sided hat with the brim turned up; A...

Definitions

A three-sided hat with the brim turned up; A...

Ancestry of “tricorn”, step by step

Step	Language	Word	Meaning
1	French	tricorne	tricorn
2	Latin	tricornis	three-horned
3	Latin	tri-	three, tri-
4	Latin	trēs	three; 3
5	Proto-Italic	trēs	three
6	Proto-Indo-European	*tréyes	—

Every word from Proto-Indo-European *tréyes →Every word from Proto-Italic trēs →Every word from Latin trēs →