English mandatory

← English mandate (mention)

← Proto-Indo-European *deh₃- (root)

← Latin mandator (mention)

→ English mando (clipping)

→ English mandatorily (suffix)

→ English nonmandatory (prefix)

→ English mandatoriness (suffix)

→ English supermandatory (prefix)

→ Spanish mandatorio (borrowed)

→ Italian mandatorio (borrowed)