What are the origins of the word ischemic?
Ischemia
The word ischemia (/ɪˈskiːmiə/) is from Greek ἴσχαιμος iskhaimos, "staunching blood" from ἴσχω iskhο, "keep back, restrain" and αἷμα haima, "blood".
Epidemiology
The distinction between "epidemic" and "endemic" was first drawn by Hippocrates, to distinguish between diseases that are "visited upon" a population (epidemic) from those that "reside within" a population (endemic). The term "epidemiology" appears to have first been used to describe the study of epidemics in 1802 by the Spanish physician Villalba in "Epidemiología Española". Epidemiologists also study the interaction of diseases in a population, a condition known as a syndemic.