[1] Folk etymology from the scholia to Aristophanes, Knights 539 (see below, at n.5); also in the Etymologicum Gudianum and Etymologicum Magnum; kora/mbh and kora/mblh are made up from ko/rh "pupil" and a)mblu/nw "make (something) dull". See the LSJ entry for kra/mbh at web address 1.
[2] In the Etymologicum Gudianum and Etymologicum Magnum ko/rw| "satiety? boy?" This spelling is consistent with the folk etymology of kora/mblh, but makes no more sense.
[3] Also from the Etymologicum Gudianum and Etymologicum Magnum. The first claim is elaborated on below. The context for the latter claim comes from the myth (also mentioned in the scholia to Knights) that cabbages came from the tears of Lycurgus, king of the Edones, after Dionysus had driven him mad and caused him to murder his children. As Geoponica 12.17.17 (Paxamos, here citing Nestor) explains, "Lycurgus, bound under the vine left his tears there, and cabbage is said to have grown from the tears; and for that reason the cabbage and the vine are hostile to each other. So if a cabbage is brought near a vineyard in arable land, it either withers at once, or makes the vine wither".
[4] Further illustration of the perceived enmity of cabbage and wine, from Athenaeus, Deipnosophists 1.34C-E (1.62 Kaibel). Athenaeus also cites Timaeus as reporting that the Sybarites ate cabbage before drinking, because it would make wine "dimmer", and adds support from Alexis and Eubulus (referring to the equivalent r(a/fanos). Cabbage is as a hangover cure in [Aristotle], Problems 3.17 (873a37-b24).
[5] On the interpretation of this quotation from Aristophanes, Knights 539, see kappa 2319. 'Alcaeus' offspring' is Heracles (grandson of Alcaeus), but the verse is spoken by the Chorus, and Heracles does not feature in Knights. The verse is explained here in terms of the hostility of vines and cabbages, though no real connection is made.