εἵνεκα (heineka)
εἵνεκα is an Ancient Greek form of ἕνεκα, meaning “on account of, for the sake of (+gen.)”. It is the preposition.
Found 308 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.666: ἐγρέσθω· τοῦ γάρ τε καὶ εἵνεκα δεῦρʼ ἐκάλεσσα.
Arrian, Indica 43.2: κατὰ δὲ Αἴγυπτον ἐσέχων ἐκ τῆς μεγάλης θαλάσσης κόλπος δῆλον ποιέει ὅτι εἵνεκά γε τοῦ σύρροον εἶναι τὴν ἔξω θάλασσαν περίπλοος ἂν ἦν ἐκ Βαβυλῶνος ἐς τὸν κόλπον τοῦτον ἐσέχοντα ὡς ἐπʼ Αἴγυπτον.
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.