ἀπιέναι (apienai)
ἀπιέναι is an Ancient Greek form of ἀφίημι, meaning “send away, release, let go”.
It can also be a form of ἄπειμι, “be away; go away”. It is the present active infinitive.
Found 359 times in the Ancient Greek texts on Socratos.
Where it is used
Thucydides, History of the Peloponnesian War 1.26.5: προσκαθεζόμενοι δὲ τὴν πόλιν προεῖπον Ἐπιδαμνίων τε τὸν βουλόμενον καὶ τοὺς ξένους ἀπαθεῖς ἀπιέναι· εἰ δὲ μή, ὡς πολεμίοις χρήσεσθαι. ὡς δ’ οὐκ ἐπείθοντο, οἱ μὲν Κερκυραῖοι (ἔστι δ’ ἰσθμὸς τὸ χωρίον) ἐπολιόρκουν τὴν πόλιν,
All forms of ἀφίημι (conjugation table)
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.