τοὔνεκα
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
English (LSJ)
crasis for τοῦ ἕνεκα,
A for that reason, therefore, Il.1.291, al., Hes.Op.49, Pi.O.1.65; also τοὔνεκεν, Xenoph.2.19, A.R.1.1354, D.P.950, etc. II interrog., for τίνος ἕνεκα; wherefore? APl.4.275.11 (Posidipp.).