ἐξαυγεία

From LSJ

λέγεται δὲ καὶ κλῶνας αὐτῆς θύραις ἢ θυρίσι προστεθέντας ἀποκρούειν τὰς τῶν φαρμάκων κακουργίας → its branches attached to doors or windows are said to repel the evil of spells

Source

Spanish (DGE)

-ας, ἡ brillo, resplandor Ph.Fr.Ex.6.