† inˈfirmitoryObs.rare. [ad.med.L. infirmitōrium, var. of infirmātōrium: cf. infirmatory n.] = infirmary 1. 1538Leland Itin. V. 82 The Fratry and Infirmitory be now mere Ruines.1645Evelyn Diary 25 Jan., The Infirmitory [at Rome] where the sick lay was paved with various colour'd marbles.