rare. [f. next: see -ENCE.] The function of an exponent of something. So also Exponency.
1880. Daily Tel., 19 Feb., 3/3. For the vocal exponence of [sacred music] … she is exceptionally gifted by nature.
1880. Angeline Teal, in Harper’s Mag., LX. 908/2. Streets and avenues, and squares and rows, enough to require the exponency of a good-sized directory!
