κλῄς
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
German (Pape)
[Seite 1452] κλῃδός, ἡ, att. = κλείς, w. m. s.
Greek (Liddell-Scott)
κλῄς: ῇδος, ἡ, ἀρχ. Ἀττ. ἀντὶ τοῦ κλείς.