C / commentārĭŏlum
noun

commentārĭŏlum

gen. commentārĭŏli · gender neuter · decl. 2nd
(, , , Hier. Ep. 149, 1), dim. commentarius
a short treatise; brief commentary
a short treatise, brief commentary: hoc, Q. Cic. Pet. Cons. 14 fin.; of dub. form, abl. plur., Cic. Fin. 4, 4, 10; id. de Or. 1, 2, 5; id. Phil. 1, 7, 16; Quint. 1, 5, 7.