Lewis & Short

dĭgĭtālis, e, adj. [digitus], 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).