Dictionary entry

παρεισδύω

G. Abbott-Smith's A Manual Greek Lexicon of the New Testament

* παρ-εισ-δύω

(also -δύνω),

to slip in secretly, steal in: παρεισεδύησαν (vulgar aor.; pass. for act., Bl., § 19, 2), Ju 4 (cf. also MM, xix).†