Counterpoise

Coun"ter*poise` (koun"t?r-poiz`; 277), v. t. [imp. & p. p. Counterpoised (-poizd`); p. pr. & vb. n. Counterpoising.] [OE. countrepesen, counterpeisen, F. contrepeser. See Counter, adv., and Poise, v. t. ] 1. To act against with equal weight; to equal in weight; to balance the weight of; to counterbalance.

Weights, counterpoising one another.
Sir K. Digby.

2. To act against with equal power; to balance.

So many freeholders of English will be able to beard and counterpoise the rest.
Spenser.

Coun"ter*poise` (koun"t?r-poiz`), n. [OE. countrepese, OF. contrepois, F. contrepods. See Counter, adv., and Poise, n.] 1. A weight sufficient to balance another, as in the opposite scale of a balance; an equal weight.

Fastening that to our exact balance, we put a metalline counterpoise into the opposite scale.
Boyle.

2. An equal power or force acting in opposition; a force sufficient to balance another force.

The second nobles are a counterpoise to the higher nobility, that they grow not too potent.
Bacon.

3. The relation of two weights or forces which balance each other; equilibrium; equiponderance.

The pendulous round eart, with balanced air,
In counterpoise.
Milton.