←
Proto-Indo-European *kap- (root)
←
Proto-Indo-European *káput- (derived)
←
Proto-Indo-European *kap- (mention)
←
Proto-Indo-European *-e-lós (derived)
←
Proto-Indo-European *-lós (derived)
←
Proto-Italic *kaput (derived)
←
Proto-Italic *-olos (derived)
←
Proto-Italic *-elos (mention)