[1] The distinction, hard to convey in translation, is between the aorist imperative (headword) and the aorist subjunctive (gloss).
[2] 'Theagenides' in one manuscript. Photius' version of the entry (mu407) has 'Thoukydides', but Theodoridis obelizes it there, for in fact this is fr. 3 Kock (4 K.-A.) of the comic poet Thugenides (cf. under tau 944). See also chi 181, and further in Theodoridis' Photius edition, vol.II pp.LXVII-LXVIII.