Sub*sid"i*a*ry (?), a. [L. subsidiarius: cf. F. subsidiaire. See Subsidy.]
1.
Furnishing aid; assisting; auxiliary; helping; tributary; especially, aiding in an inferior position or capacity; as, a subsidiary stream.
Chief ruler and principal head everywhere, not suffragant and subsidiary.
Florio.
They constituted a useful subsidiary testimony of another state of existence.
Coleridge.
2.
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.
© Webster 1913.
Sub*sid"i*a*ry, n.; pl. Subsidiaries ().
One who, or that which, contributes aid or additional supplies; an assistant; an auxiliary.
Hammond.
© Webster 1913.