8104  shamar  shaw-mar'

 a primitive root; properly, 
to hedge about (as with 
thorns), i.e. guard; 
generally, to protect, attend 
to, etc.:--beward, be 
circumspect, take heed (to 
self), keep(-er, self), mark, 
look narrowly, observe, 
preserve, regard, reserve, 
save (self), sure, (that lay) 
wait (for), watch(-man).