नऊ (Marathi) comes from Sauraseni Prakrit 𑀦𑀯, from Sanskrit नव, from Proto-Balto-Slavic náwas, from Proto-Indo-Aryan náwas, from Proto-Indo-European néwyos, from Proto-Indo-European néwos, from Proto-Indo-European new- — new; to nod, assent to.
नऊ (Marathi): nine