This verb means 'to bewitch' or 'cast a spell,' describing the act of enchanting or mesmerizing someone, often maliciously (by the 'evil eye'). Paul uses it rhetorically in Galatians 3:1: 'You foolish Galatians! Who has bewitched you (τίς ὑμᾶς ἐβάσκανεν)?' He's not suggesting literal sorcery but rather expressing astonishment that the Galatians, who clearly saw Christ crucified depicted before them, have been so thoroughly deceived by false teachers. The term captures the irrational, almost supernatural quality of their apostasy—as if they've been placed under a spell that blinds them to the gospel's clarity.