Strong's G2831 — κλυδωνίζομαι (verb)
kludonizomai (kloo-do-nid'-zom-ai) v.
1. to surge
2. (figuratively) to fluctuate
[middle voice from G2830]
KJV: toss to and fro 
Root(s): G2830 
Hebrew root: κλύδων
Occurrences: 1