Hebrew and Greek Strong's Dictionary with all the definitions plus combined with every place that word is used in the definitions.
Complete index of every word used in both the Hebrew and Greek Strong's Dictionary in English Word order.
Hebrew and Greek Expanded Dictionary
heresy 0139 - hairesis {hah'-ee-res-is}; from 0138; properly, a choice, i.e. (specially) a party or (abstractly) disunion: -- {heresy} [which is the Greek word itself], sect.