The Collaborative International Dictionary
Contributary
Contributary \Con*trib"u*ta*ry\, a.
Contributory. [R.]
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Tributary; contributing. [R.]
It was situated on the Ganges, at the place where this river received a contributary stream.
--D'Anville (Trans. ).
Wiktionary
contributary
a. 1 contributory 2 tributary; contribute
Usage examples of "contributary".
A third contributary cause was the economic wretchedness, internal decay and falling population of the Roman Empire.