Strong's G844 — αὐτόματος (adjective)
automatos (au-tom'-at-os) adj.
1. self-moved ("automatic"), i.e. spontaneous
[from G846 and the same as G3155]
KJV: of own accord, of self 
Root(s): G846, G3155 
Hebrew root: μάτην
Occurrences: 2