Strong's G139 — αἵρεσις (noun)
hairesis (hai'-res-is) n.
1. (properly) a choice
2. (by extension) a preference
3. (specially) a (religious) party, a sect, a denomination
4. (abstractly) disunion
[from G138]
KJV: heresy (which is the Greek word itself), sect 
Root(s): G138 
Hebrew root: αἱρέομαι
Occurrences: 9