in·fir·ma·ry 
(ĭn-fûrmə-rē)
(ĭn-fûrmə-rē)n. pl. in·fir·ma·ries
A place for the care of the infirm, sick, or injured, especially a small hospital or dispensary in an institution.
[Middle English infirmarie, from Medieval Latin īnfirmāria, from Latin īnfirmus, infirm; see INFIRM.]