Lewis Short
jānĭtrix (noun F) : janitor
* A female door-keeper, a portress.
* Lit.: anus hic solet cubitare custos, janitrix,Plaut. Curc. 1, 1, 76.
* Transf.: laurus janitrix Caesarum,i. e. planted in front of the house,Plin. 15, 30, 39, § 127.
Charlton T. Lewis, Charles Short, A Latin Dictionary