Where does “biretum” come from?

biretum (Medieval Latin) comes from Old Occitan berret, from Late Latin birrus, from Gaulish birrus, from Proto-Celtic birros — short.

Ancestry of “biretum”, step by step

StepLanguageWordMeaning
1Old Occitanberret—
2Late Latinbirrusa kind of cloak; large hooded cloak; hooded coat
3Gaulishbirrusshort cloak
4Proto-Celticbirrosshort

Words derived from “biretum”

Every word from Proto-Celtic birros →Every word from Gaulish birrus →Every word from Late Latin birrus →