er or authority conferred by one. person by deed or will upon another (called the “donee”) to appoint, that is, to select and nominate, the person or persons who are to re eelve and enjoy an estate or an income therefrom or: from a fund, after the testator’s death, or the donee's death, or after the termination of an existing right or interest. See Heinemann v. De Wolf, 25 R. I. 243, 55