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

StepLanguageWordMeaning
1PortugueseGuilherme—
2Old FrenchWillame—
3FrankishWillahelmWilliam
4Proto-GermanicWiljahelmaz—
5Proto-Germanichelmazhelmet
6Proto-Germanichalmazhalm; stem; stalk; straw; hay
7Proto-Indo-Europeanḱolh₂mosstalk
8Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab
Every word from Proto-Indo-European ḱelh₂- →Every word from Proto-Indo-European ḱolh₂mos →Every word from Proto-Germanic halmaz →