The serpent beguiled Eve (ho ophis exēpatēsen Heuan). Paul’s only mention of the serpent in Eden. The compound exapataō means to deceive completely.
Lest by any means (mē pōs). Common conjunction after verbs of fearing.
Corrupted (phtharēi). Second aorist passive subjunctive with mē pōs of phtheirō, to corrupt.