holdback

• POS: Noun
• HYPHEN: hold=back

CIDE DICTIONARY

holdback, n. 

•  Check; hindrance; restraint; obstacle.  [1913 Webster]

  "The only holdback is the affection . . . that we bear to our wealth."  [1913 Webster]
•  The projection or loop on the thill of a vehicle. to which a strap of the harness is attached, to hold back a carriage when going down hill, or in backing; also, the strap or part of the harness so used.  [1913 Webster]

THESAURUS

holdback

arrest, arrestation, arrestment, bearing rein, bit, blockage, blocking, brake, chain, check, checkrein, chock, clog, clogging, closing up, closure, constriction, countercheck, cramp, curb, curb bit, damper, delay, detainment, detention, doorstop, drag, drag sail, drift anchor, drift sail, drogue, fetter, fixation, foot-dragging, hampering, hindering, hindrance, holdup, impediment, inhibition, interference, interruption, let, martingale, negativism, nuisance value, obstruction, obstructionism, occlusion, opposition, pelham, remora, repression, resistance, restraint, restriction, retardation, retardment, scotch, sea anchor, setback, shackle, snaffle, spoke, squeeze, stay, stop, stranglehold, stricture, suppression, trammel