Ischemia
The word "ischemia" () is from Greek ἴσχαιμος "iskhaimos", "staunching blood" from ἴσχω "iskhο", "keep back, restrain" and αἷμα "haima", "blood".
Id reaction
The suffix -id has its origins in Greek, meaning father-son. Josef Jadassohn (1863-1936), a German dermatologist who coined the term id, had observed a dermatophytosis causing a secondary allergic skin dermatitis. In 1928, Bloch recorded that the peak of the dermatophyte infection corresponded with the id reaction.