The Collaborative International Dictionary
Preponderance \Pre*pon"der*ance\, Preponderancy \Pre*pon"der*an*cy\, n. [Cf. F. pr['e]pond['e]rance.]
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The quality or state of being preponderant; superiority or excess of weight, influence, or power, etc.; an outweighing.
The mind should . . . reject or receive proportionably to the preponderancy of the greater grounds of probability.
--Locke.In a few weeks he had changed the relative position of all the states in Europe, and had restored the equilibrium which the preponderance of one power had destroyed.
--Macaulay. (Gun.) The excess of weight of that part of a canon behind the trunnions over that in front of them.
Wiktionary
n. (archaic form of preponderance English)
Usage examples of "preponderancy".
Owing to this simple omission, the crane got a preponderancy to one side, and fell upon the building with a terrible crash.