Digitâlis, & hoc digitâle, pen. prod. om. g. Pertaining to a finger. vt, Digitalis crassitudo. Plin. A fingers thickuesse.Digitalis gracilitas. Plin.
Lewis and Short: Latin dictionary
dĭgĭtālis, e, adj. [id.], of or belonging to the finger: gracilitas, Plin. 14, 3, 4, 40: crassitudo, id. 22, 20, 23, 48; cf. Varr. R. R. 1, 55, 1 Schneid. and Gesn. (al. digitabulis).