Meaning

noun the mother of your father or mother

noun (Norse mythology) wife of Balder

noun god of the Moon; counterpart of the Akkadian Sin

originPossibly derived from Proto-Celtic *nana (“grandmother”); probably from a Proto-Indo-European root imitative of a child babbling, similar to Ancient Greek νάννα (nánna). See also nanny. Compare Welsh nain, Sicilian nanna, Italian nonna, Norman nonne, Galician nana, Spanish nana, Old French nonain, Late Latin nonna.

Etymology from Wiktionary, CC BY-SA 3.0