Guillaume
/ɡɥi.jom/noun
A French masculine given name, equivalent to William.
Did you know?Guillaume ultimately comes from the same ancient Germanic name that gave English William, so every Guillaume carries a root meaning closer to “resolute protector” than to any romantic modern vibe.
Etymological Timeline
Proto-Germanic
PGmc
*Wiljahelmaz
“A compound personal name meaning “will-helmet” or “resolute protector””
Early Germanic
Germanic
*Wilhelm
“A masculine personal name built from elements meaning “will” and “helmet””
Old High German
OHG
Willehelm / Wilhelm
“A personal name used among Germanic speakers”
Old French
Old French
Guillaume
“The French form of the Germanic name William”
Modern French
French
Guillaume
“A French masculine given name”