See also kappa 1890, kappa 1891.
[1] Uncritical abbreviation of Herodian, De prosodia catholica p. 444-445 Lentz (citing Philoxenus fr.120 Theodoridis) "κνυζῶ is of both the first and the second conjugation [i.e. both regular and contracted]; its future is κνυζήσω , hence κνυζηθμός like μυκηθμός ... Some derive it from κόνυζα 'fleabane', as in 'ground-seeking fleabane' [Nicander, Theriaca 70], becoming κνυζῶ like κόρυζα > κορυζῶ and ῥίζα > ῥιζῶ , which is improbable. It is better to say in agreement with Philoxenus that it is derived from κνύω , which means 'scratch'." The derivation is also given in Eustathius, Commentary on Odyssey II p.54 Stallbaum, Etymologicum Gudianum s.v. κλυζῶσαι . Why "fleabane" would offer a plausible etymology for either "whimper" or "darken/destroy" (kappa 1891) is not explained by any commentator.
[2] Glossed by Pseudo-Zonaras s.v. and Gennadius Scholarius, Grammar II p. 460 Judie Petit & Siderides as "unclear noise of dogs, and crying"; by Etymologicum Gudianum as "crying of dogs, or inarticulate voice of crying"; by Hesychius as "a kind of vocal sound"; by the scholia to Aristophanes, Wasps 977 as "a kind of dogs' voice"; and by the scholia to Theocritus, Idylls 6.29 as "dogs' inarticulate howl".
[3] Quotation unidentifiable; Adler suggests Aelian.