ἡνίκʼ (henik)
ἡνίκʼ is an Ancient Greek form of ἡνίκα, meaning “at the time when”. It is the adverb.
Found 162 times in the Ancient Greek texts on Socratos.
Where it is used
Euripides, Cyclops 3: πρῶτον μέν, ἡνίκ’ ἐμμανὴς Ἥρας ὕπο
Euripides, Heracleidae 736: οὐ ταῦτα λέξεις, ἡνίκʼ ἂν λεύσσῃς μʼ ἐκεῖ.
Homeric Hymns, Hymn 3 to Delian and Pythian Apollo 308: ἥνικʼ ἄρα Κρονίδης ἐρικυδέα γείνατʼ Ἀθήνην
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.