Applicatio, Verbale: vt Applicatio animi. Cic.An applying or bending of the minde: a resorting or repayring to, &c.
Lewis and Short: Latin dictionary
applĭcātĭo (adp-), ōnis, f. [id.] (only in Cic.). I.A joining or attaching one's self to; hence, trop., an inclining to, inclination: adplicatio animi, Cic. Lael. 8, 27.— II. Judic. t. t., a placing of one's self under the protection of a superior, clientship: jus applicationis,
the right of inheriting the effects of such a client