The headword (again pi 271, pi 272) is the aorist middle infinitive of the verb paraba/llw, I throw beside; see generally LSJ s.v. In the middle voice, however, the connotation often gains considerable personal force as evinced in the gloss: e.g., to have staked what is in my personal interest upon a chance. See also omicron 284.
[1] The articular infinitive of the gloss, from the verb e)capata/w, I beguile utterly, is aorist active; see generally LSJ s.v. The headword is similarly glossed in Photius, Lexicon pi192 Theodoridis (s.v. paraba/llesqai); cf. Hesychius s.v paraballo/menai.
[2] Thucydides 1.133, actually with the aorist optative middle, third person singular, of the headword verb (web address 1): w(s ou)de\n pw/pote au)to\n e)n tai=s pro\s basile/a diakoni/ais paraba/loito (as never yet in his ministrations before the king might he have been utterly beguiling).
[3] Homer, Iliad 4.6 (web address 2): an adverb derived from the headword verb, parablh/dhn, is used to depict how Zeus inveigled Hera.