intardo

in-tardo, āvi, ātum, 1, v. n. 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.