[1] The headword is aorist indicative active, third person singular, of tainio/w. It must be quoted from somewhere: perhaps the quotation given here (but that is problematic: see next note); otherwise perhaps Xenophon, Hellenica 5.1.3.
[2] Iamblichus, Babyloniaca fr. 77 Habrich. Habrich prints there Bernhardy's emendation, kai\ e)taini/wse, of the transmitted compound katetaini/wse, retained by Adler (and registered by LSJ).