Likewise (or similarly: see next note) in other lexica. The headword is aorist passive -- used in an active sense: see LSJ -- of e)kre/w, third person plural. It must be quoted from somewhere. Extant instances include one in the Septuagint (1 Maccabees 9.6) and two -- both of them describing speeches falling out of people's consciousness -- in Plutarch's Lives (Themistocles 12.2, Cato Minor 61.3).
[1] The strange phrase e)n po/lei feugo/ntwn is taken over from Lexica Segueriana 224.10. The tacit emendation in ps.-Zonaras, 'fleeing in war' (e)n pole/mw|), is attractive.