From Sanskrit ऊनविंशति (ūnaviṃśati). Cognate with Assamese উনৈশ (unoix), Bengali উনিশ (uniś), Hajong উন্নিশ (unniś), Hindi उन्नीस (unnīs), Urdu انیس.
ꠃꠘ꠆ꠘꠤꠡ • (unniś)