English instigator

← French instigateur (cognate)

← Proto-Indo-European *(s)teyg- (derived)

← Proto-Indo-European *-h₃onh₂- (derived)

← Latin instīgātor (derived)

← Latin instigāre (mention)

← Latin īnstīgō (mention)

← Latin -or (mention)

← Latin -ō (mention)

→ English instigatress (suffix)