Extended Strong's Greek Lexicon (Abbott-Smith based)
to stop
Usage: φράσσω [in LXX: Job.38:8 (סָכַךְ hi.), Hos.2:6(8) (שׂוּךְ), Pro.21:13 (אָטַם), etc. ;] to fence in, stop, close: στόματα λεόντων, Heb.11:33; στόμα, metaphorically, Rom.3:19; pass., καύχησις, 2Co.11:10.† (AS)