Where does “Guilherme” come from?

Guilherme (Portuguese) comes 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 “Guilherme”, step by step

StepLanguageWordMeaning
1Old FrenchWillame—
2FrankishWillahelmWilliam
3Proto-GermanicWiljahelmaz—
4Proto-Germanichelmazhelmet
5Proto-Germanichalmazhalm; stem; stalk; straw; hay
6Proto-Indo-Europeanḱolh₂mosstalk
7Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab

Words derived from “Guilherme”

Every word from Proto-Indo-European ḱelh₂- →Every word from Proto-Indo-European ḱolh₂mos →Every word from Proto-Germanic halmaz →