Where does “guillemot” come from?
guillemot (French) comes from French Guillaume, from Old French Guillaume, from Frankish Willahelm, from Proto-Germanic Wiljahelmaz, from Proto-Germanic helmaz, from Proto-Germanic halmaz, from Proto-Indo-European ḱolh₂mos, from Proto-Indo-European ḱelh₂- — to pierce, strike; to stick; prick; stab.
Ancestry of “guillemot”, step by step
Words derived from “guillemot”