עָצָר ʻâtsâr (H6113)

to inclose; by analogy, to hold back; also to maintain, rule, assemble

1) to restrain, retain, close up, shut, withhold, refrain, stay, detain 1a) (Qal) 1a1) to restrain, halt, stop 1a2) to retain 1b) (Niphal) to be restrained, be stayed, be under restraint

a primitive root;