M / mātrīcŭla
noun

mātrīcŭla

gen. mātrīcŭlae · gender feminine · decl. 1st
dim. matrix
a public register, list, roll
a public register, list, roll (post-class.), Veg. Mil. 1, 26; 2, 2; 5; Cod. Just. 12, 20, 3.