[1] The headword itself is accusative plural, presumably quoted from somewhere -- other than the quotation given, where it is nominative plural. Perhaps, as suggested by Latte on Hesychius s.v., Herodotus (8.140.a1 & b4). See also alpha 1497.
[2] Procopius, Secret History 2.10 (web address 1); upon learning that his wife Antonina was continuing an affair with his adopted son Theodosius, Belisarius (cf. beta 233) pleads with Photios to join with him in seeking vengeance; cf. Kaldellis (10-11). On Antonina and Theodosius, see epsilon 671 note. On Photios, son of Antonina by a previous marriage and stepson of Belisarius, see PLRE IIIb s.v. Photius(2).