Strong's G5420 — φράσσω (verb)
phrasso (fras'-so) v.
1. to fence or inclose
2. (specially) to block up
3. (figuratively) to silence
[apparently a strengthening form of the base of G5424]
KJV: stop 
Root(s): G5424 
Hebrew root: φρήν
Occurrences: 3