αἰεί (aiei)
αἰεί is an Ancient Greek form of ἀεί, meaning “always, ever”. It is the adverb.
Found 917 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 1.374: αἰεὶ δὲ προτέρω χθαμαλώτερον ἐξελάχαινον
Pindar, Isthmean 6.25: ἅτις οὐ Πηλέος ἀΐει κλέος ἥρωος, εὐδαίμονος γαμβροῦ θεῶν,
Aeschylus, Persians 633: ἦ ῥʼ ἀίει μου μακαρίτας
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.