Where does “Guilhermina” come from?
Guilhermina (Portuguese) comes from Portuguese Guilherme, from Old French Willame, 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 “Guilhermina”, step by step