French semaine

← Middle French sepmaine (inherited)

← Old French semaine (inherited)

← Latin septimānus (inherited)

← Latin septimus (mention)

→ English semainier (mention)

→ Seychellois Creole semenn (derived)

→ Esperanto semajno (orthographic borrowing)

→ Haitian Creole semèn (derived)

→ Ido semano (borrowed)

→ Mauritian Creole semenn (derived)

→ Romanian săptămână (cognate)