By Stephen P. White, The Catholic Thing - The word “nostalgia” was coined in the seventeenth century by a Swiss physician named Johannes Hofer. The word was a Latinized combination of two Greek words: nostos, meaning “a return home” (think Odysseus), and algos, meaning “pain.” Hofer used his new word to describe a medical condition, one he noticed to be particularly common among Swiss mercenaries serving abroad, which might best be described as acute homesickness – homesickness so acute that it could sometimes be fatal.