keep back

verbs

keep under control; keep in check
"suppress a smile"; "Keep your temper"; "keep your cool"
hold back, keep, keep back, restrain
secure and keep for possible future use or application
"The landlord retained the security deposit"; "I reserve the right to disagree"
hold, hold back, keep back, retain
hold back; refuse to hand over or share
"The father is withholding the allowance until the son cleans his room"
keep back, withhold