Etymology

From Proto-Slavic *nogъtь, ultimately from Proto-Indo-European *h₃nogʰ-. Compare Lithuanian nagas, Sanskrit नख ‎(nakhá), Persian ناخن ‎(nâxon), Old Armenian եղունգն ‎(ełungn), Ancient Greek ὄνυξ ‎(ónux), Latin unguis, Old Irish inga, Old English næġel (English nail).