Quenya 

nai

ill, grievously, abominably

nai (2) prefix "ill, grievously, abominably" (PE17:151), cf. naiquet-. Earlier material also lists an interjection nai "alas" _(NAY; this may be obsoleted by # 1 above; _Namárië uses ai! in a similar sense)

quolina

adjective. ill, sickly, ailing

Derivations

  • ᴺ✶. KWOL “*disease”