[1] = Timaeus, Platonic Lexicon 1002a24, and Photius sigma349 Theodoridis. They are commenting on Plato, Euthydemus 271B, where the headword adjective occurs; cf. also Pollux 2.10. There was considerable disagreement on the meaning of this term among ancient commentators: contrast scholia to Plato loc. cit., scholia to Aeschines 1.49, and ps.-Theaetetus, Lexicon of Attic Words ("old in age but young in appearance"), Hesychius sigma1041 ("thin and slender" - hence LSJ), Photius sigma348 s.v. sklhfro/n ("withered and unseemly"). The present gloss seems to be etymologically oriented, basing its definition on the similarity between the headword and the adjective sklhro/s ('harsh') along with the verb fe/rw ('bear').
[2] This sentence, lacking (Adler reports) in mss AFV, has been deposited here from delta 1515 (the entry cited); the only connection with the present entry would seem to be that both contain forms of the adjective sklhro/s ('harsh').