The headword, evidently extracted from the first quotation given, is the present indicative active, third person singular (and present indicative middle/passive, second person singular), of the verb lu/zw, I hiccup, sob violently, wail; see LSJ s.v.
[1] cf. lambda 778 for substantives derived from the headword verb (hiccup, spasmodic affection of the throat) and first glossing verb (a loud crying).
[2] From a scholion to Aristophanes, Acharnians 690 (web address 1).
[3] From another such scholion.
[4] The chorus-leader describes the plight of an old man in court at Aristophanes, Acharnians 690; cf. previous notes.
[5] Greek Anthology 7.218.12, Antipater of Sidon's epigram to the legendary hetaera, Lais of Corinth (Gow and Page, vol. I, p. 19; vol. II, pp. 52-3); cf. lambda 40, nu 16, and names of other Corinthian courtesans--akin to modern geishas--at epsilon 3266. See Gow and Page (vol. I, ibid.); (vol. II, ibid.); and further extracts from this epigram at alpha 1219, alpha 1683, delta 1519, theta 519, kappa 751, kappa 1525, kappa 2628, omicron 51, pi 1457, and pi 1903.
[6] cf. lambda 767.