Etymology tree Proto-Indo-European *ḱe? Proto-Indo-European *ḱóm Proto-Italic *kom Proto-Italic *kom- Latin con- Proto-Indo-European *terkʷ- Proto-Italic *torkʷeō Latin torqueō Latin contorqueō Latin contortus Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin contortiōlbor. Portuguese contorção Learned borrowing from Latin contortiō.