Holdback
Pronunciation : Hold"back`
Part of Speech : n.
Definition : 1. Check; hindrance; restraint; obstacle. The only holdback is the affection . . . that we bear to our wealth. Hammond.
2. 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.
Source : Webster's Unabridged Dictionary, 1913