συνήθειαν (synetheian)
συνήθειαν is an Ancient Greek form of συνήθεια, meaning “familiarity, habit, custom”. It is the accusative singular feminine noun.
Found 137 times in the Ancient Greek texts on Socratos.
Where it is used
Diogenes Laertius, Vitae philosophorum 3.1.65: … θενται, φέρε καὶ περὶ τούτων τι εἴπωμεν. Χῖ λαμβάνεται πρὸς τὰς λέξεις καὶ τὰ σχήματα καὶ ὅλως τὴν Πλατωνικὴν συνήθειαν· διπλῆ πρὸς τὰ δόγματα καὶ τὰ ἀρέσκοντα Πλάτωνι·
Aristotle, Eudemian Ethics 8.2·4: … αχεῖαν εἶναι τὴν μαντικήν, καὶ μόνον οὐ τὴν ἀπὸ τοῦ λόγου δεῖ ἀπολαβεῖν, ἀλλʼ οἳ μὲν διʼ ἐμπειρίαν, οἳ δὲ διὰ συνήθειάν τε ἐν τῷ σκοπεῖν χρῆσθαι· τῷ θεῷ δὲ αὗται. τοῦτο καὶ εὖ ὁρᾷ καὶ τὸ μέλλον καὶ τὸ ὄν, καὶ ὧν ἀπολύεται ὁ λόγος …
Basil, Saint, Bishop of Caesarea, Epistulae 188·5: … έτι ἀξίων ὄντων τῶν ὑπερεκπεσόντων τοῦ μέτρου τῆς διγαμίας τῷ τοῦ ἀνδρὸς ἢ τῆς γυναικὸς καλεῖσθαι προσρήματι. συνηθειαν δὲ κατελάβομεν ἐπὶ τῶν τριγάμων πενταετίας ἀφορισμόν· οὐκ ἀπὸ κανόνων, ἀλλʼ ἀπὸ τῆς τῶν προειληφότων ἀκολουθί …
All forms of συνήθεια (declension 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.