Lewis Short
(verb) : in-tardo, āvi, ātum, 1, and
* A., to stay, abide (late Lat.): intardans atque perseverans,Cael. Aur. Acut. 1, 4, 43; part. pass. subst.: intardata corporibus emovere,chronic disorders,id. ib. 2, 3, 70.
Charlton T. Lewis, Charles Short, A Latin Dictionary