[1] The headword (probably extracted from the proverb given below, though common enough even if not) is neuter plural of this superlative adjective, used adverbially.
[2] For this proverb see also e.g. Athenaeus, Deipnosophists 13.568DE (13.24 Kaibel). Its verb, (?)bowdlerised here in the Suda and in some of the paroemiographers to the meaningless u(fei=, should in fact be the Doric oi)fei=, on which see LSJ s.v., and J. Henderson, The Maculate Muse (New Haven 1975) 157 #238. The whole phrase was once taken to come from comedy (adespota fr. 36 Kock) but is now registered as Mimnermus [mu 1077] fr.21a West.