8104. shamar -- to keep, watch, preserve
... A primitive root; properly, to hedge about (as with thorns), ie Guard; generally,
to protect, attend to, etc. -- beward, be circumspect ...
/hebrew/8104.htm - 7k

6791. tsen -- perhaps a thorn, barb
... derivation Definition perhaps a thorn, barb NASB Word Usage thorns (2). thorn. From
an unused root meaning to be prickly; a thorn; hence, a cactus-hedge -- thorn ...
/hebrew/6791.htm - 5k