This weird etymology, found only here, is the result of a misunderstanding. In the main manuscript of Orion, the lemma before καλός is κλέος: Κλέος. παρὰ τὸ κλείειν. ἐγὼ δέ σε κλείω ἐπ’ ἀπείρονα γαῖαν. | Καλός. παρὰ τὸ κάζω, ῥῆμα, οὗ παρακείμενος κείρασμαι καὶ μέλλων κάσω. ἀφ’ οὗ καλὸς ὄνομα. ἢ παρὰ τὸ καλῶ καὶ καλεῖν πρὸς ἑαυτὸν ἕκαστον (Etymologicum, p. 84). The copyist of Orion merged two explanations, confusing κλέος with the following lemma καλός (because the shapes of Α and Λ are similar), and misunderstanding κλείω "to celebrate" (epic) for the homonymous verb κλείω "to shut", much more usual. He then provides a clumsy explanation for the etymon "to lock" by means of περικλείω "to enclose", in which the important element is the preverb περι-. The idea that men are "shut in" by beauty is a variant of the etymology by "to charm, to bewitch" (see καλός / κηλέω)