[1] The headword (perhaps, though not necessarily, extracted from the quotation given) is present participle, masculine nominative plural, of ei)rwneu/omai (see also epsiloniota 206, epsiloniota 209). For the gloss cf. the scholia to Plato, Symposium 216E, where the singular participle occurs.
[2] Menander Protector fr. 19.1 Blockley (174-175; 43 FHG (4.246a)), the retort of the Turkish khan Turxanthus to Roman envoy Valentinus in 576. On Turxanthus see PLRE IIIb s.v. Tourxanthus. On Valentinus see PLRE IIIb s.v. Valentinus(3). See further excerpts from this fragment at epsilon 659, epsilon 719, omicron 84, pi 2799, and sigma 413.
[3] Evidently quoted from somewhere; extant possibilities include Aristophanes (Birds 1211) and Plato (Cratylus 384A).