1666, from Gk. pandemos "pertaining to all people," from pan- "all" + demos "people" (see demotic). Modeled on epidemic. The noun is first recorded 1853, from the adj.
Main Entry: 1pan·dem·ic Pronunciation: pan-'dem-ik Function: adjective : occurring over a wide geographic area and affecting anexceptionally high proportion of the population <pandemic malaria>
Main Entry: 2pandemic Function: noun : a pandemic outbreak of a disease