Strong's G831 — αὐθεντέω (verb)
authenteo (au-then-teh'-o) v.
1. to act of oneself
2. (figuratively) dominate
[from a compound of G846 and an obsolete hentes (a worker)]
KJV: usurp authority over 
Root(s): G846 
Hebrew root: αὐτός
Occurrences: 1