ischaemia (n.) Look up ischaemia at Dictionary.com
also ischemia, 1866 (but as far back as 1660s in form ischaimes), from medical Latin ischaemia, from ischaemus "stopping blood," from Greek iskhaimos "stanching or stopping of blood," from iskhein "to hold" + haima "blood" (see -emia). Related: Ischemic.