What does "subsidiary" mean?

Subsidiary: Of or pertaining to a subsidy; constituting a subsidy; being a part of, or of the nature of, a subsidy; as, subsidiary payments to an ally. George the Second relied on his subsidiary treaties. Ld. Mahon.

Additional senses

  1. 2.One who, or that which, contributes aid or additional supplies; an assistant; an auxiliary. Hammond.

Sources