#caw- vb. "bow" ("k")(1st pers aorist cawin "I bow") (LT1:257; cf. cauca, cauco). In Tolkien's later Quenya, a verbal stem with w in this position does not seem to fit the general phonology well; intervocalic w would become v. We should perhaps read *cav*- whereever the second consonant of the root follows a vowel, but the nasal-infixed past tense could be canwë with the original quality of the consonant preserved. (Compare such a past tense form as anwë, q.v.) However, Tolkiens later verb luhta**- may be preferred for intransitive "bow".
Nandorin
cogn
noun. bow
Primitive form given as kuȜnâ, derived from KUȜ "bow" (LR:365); it is probable that ku3nâ was originally an adjective "bow-shaped", since -nâ is predominantly an adjectival ending. As for Ȝ (spirant g) becoming a plosive g, compare garma.