Definitions for "Restrain"
To draw back again; to hold back from acting, proceeding, or advancing, either by physical or moral force, or by any interposing obstacle; to repress or suppress; to keep down; to curb.
To draw back toghtly, as a rein.
keep under control; keep in check; "suppress a smile"; "Keep your temper"; "keep your cool"
To hinder from unlimited enjoiment; to abridge.
Controlling the enemy pieces in order to keep them from becoming active.
Keep controlled the enemy pieces in order to prevent that they appear suddenly too active (Chess Terminology - Current Chess Theory). Ā«Retrograde Analysis
Keywords:  forbear, withhold
To withhold; to forbear.
Keywords:  deter, threats, compel
to compel or deter by or as if by threats
To limit; to confine; to restrict.
place limits on (extent or access); "restrict the use of this parking lot"; "limit the time you can spend with your friends"