The article deals with the diachronic interpretation of material from the Indo-European, Altaic and Afro-Asiatic language families, reaching, on one hand, the etymons of the first level (Ancient Greek *okṷịe-, Albanian *okṷi-, Turkic *uk(ā)-, Mongolian *ukа-) and the second level (Indo-European *hṷekṷ- / *heuk-, Altaic *uka-, Afro-Asiatic *Hwq-), and on the other hand, the third level (Nostratic *HuḲa), and allows us to fix both a divergent and convergent relationship of correspondences, taking into account the established laws.