Strong’s Greek
G5420 — phrasso
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
φράσσω
phrasso — pronounced fras'-so
apparently a strengthening form of the base of 5424; to fence or inclose, i.e. (specially), to block up (figuratively, to silence):--stop. see GREEK for 5424
2 occurrences in the KJV.
Romans 3:19
Now we know that what things soever the law saith, it saith to them who are under the law: that every mouth may be stopped, and all the world may become guilty before God.
Hebrews 11:33
Who through faith subdued kingdoms, wrought righteousness, obtained promises, stopped the mouths of lions.