αἵρεσις
Etym. αἱρέω
I. "a taking especially", esp. of a town, Hdt., etc.; ἡ βασιλῆος αἵρ. "the taking by" the king, Hdt.
2. "means for taking a place", Thuc.
II. （αἱρέομαι) "a taking for oneself, a choosing, choice", νέμειν, προτιθέναι, προβάλλειν to give or offer "choice", Hdt., attic; αἵρ. γίγνεταί τινι "a choice" is allowed one, Thuc.; αἵρεσιν λαμβάνειν to have "choice" given, Dem.
2. "choice or election" of magistrates, Thuc., etc.
3. "a choice, deliberate plan, purpose", Plat., etc.
4. "a sect, school", etc.: esp. "a religious sect", such as the Sadducees and Pharisees, NTest.
5. "a heresy", Eccl.