Webster's Revised Unabridged Dictionary · 1913

Contingent

Contingent , adjective

[Latin contingens, -entis, present participle of contingere to touch on all sides, to happen; con- + tangere to touch: compare French contingent. See Tangent, Tact.]

1.
Possible, or liable, but not certain, to occur; incidental; casual.
Weighing so much actual crime against so much contingent advantage. — Burke
2.
Dependent on that which is undetermined or unknown; as, the success of his undertaking is contingent upon events which he can not control.
Uncertain and contingent causes. — Tillotson
3.
(Law) Dependent for effect on something that may or may not occur; as, a contingent estate.
If a contingent legacy be left to any one when he attains, or if he attains, the age of twenty-one. — Blackstone

Contingent , noun

1.
An event which may or may not happen; that which is unforeseen, undetermined, or dependent on something future; a contingency.
His understanding could almost pierce into future contingents. — South
2.
That which falls to one in a division or apportionment among a number; a suitable share; proportion; esp., a quota of troops.
From the Alps to the border of Flanders, contingents were required... 200,000 men were in arms. — Milman