From haireomai; properly, a choice, i.e. (specially) a party or (abstractly) disunion -- heresy (which is the Greek word itself), sect.
see GREEK haireomai
αἱρέσεις (aireseis) − 3 Occurrences
αἱρέσεως (aireseōs) − 3 Occurrences
αἵρεσιν (airesin) − 2 Occurrences
αἵρεσις (airesis) − 1 Occurrence