a. rare. [f. L. type *fundātōri-us (see next) + -AL.] Pertaining or proper to a founder.

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1892.  Freeman, Hist. Ess., Ser. II. xvi. 305. The Queen issues the document by virtue of her ‘fundatorial’ powers, powers which we may conceive at pleasure as being derived from Æthelberht or from her own father.

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