I / interfectrix
noun

interfectrix

gen. interfectrīcis · gender feminine · decl. 3rd
interfector
a murderess
a murderess (post-Aug.): nepotis, Tac. A. 3, 17; Hyg. Fab. 122.—
figuratively
Trop.: abstinentia, Cael. Aur. Acut. 3, 8, 95.