-nô and -no are masculine endings in Primitive Elvish which sometimes indicate agentival formations.
Its feminine counterpart was -nê.
-nô was usually suffixed to a word root with or without n-infixion, and produce the word. In a few cases, it seems to be suffixed to a verb stem.
The ending was frequently extended with -ondô.
- adnô (AD) > Q. ando S. annon (from *adnondô)
- bernô (BER) >
- besnô (BES) > Q. venno S. benn
- tirnô (TIR) >
- mbandô (MBAD) > Q. mando S. band
- stabnô (STAB) > Q. samno S. thavon
- sjadnô (SYAD) > Q. hyando
 Hypothetical examples
The following examples aren't attested in Primitive Elvish but can be seen in the Quenya derivatives. It's possible that the primitive forms did not contain the ending -nô but could be rather the result of fortification of final D > ND
 See also
Other agentive suffixes are