similitas
From LSJ
Latin > English (Lewis & Short)
sĭmĭlĭtas: ātis, f. similis a rare form for similitudo,
I likeness, resemblance, similarity: morum, Caecil. ap. Non. 177, 2 (Com. Rel. v. 216 Rib.).—Plur.: naturae rerum similitates, Vitr. 2, 9 med.>