1) to gather, restrain, fence, fortify, make inaccessible, enclose
1a) (Qal)
1a1) to cut off
1a2) fortified, cut off, made inaccessible (pass participle)
1a3) secrets, mysteries, inaccessible things (subst)
1b) (Niphal) to be withheld
1c) (Piel) to fortify