What's the difference between i.e. and e.g.?
"medicine that soothes pain," 1704, from adjective (1680s) "soothing," from Late Latin paregoricus, from Greek paregorikos "soothing, encouraging, consoling," from paregorein "speak soothingly to," from paregoros "consoling," from para- "beside" (see para- (1)) + root of agoreuein "speak in public," from agora "public assembly," from PIE root *ger- "to gather" (see gregarious).
paregoric par·e·gor·ic (pār'ə-gôr'ĭk)
A camphorated tincture of opium, taken internally for the relief of diarrhea and intestinal pain.
preparation principally used in the treatment of diarrhea. Paregoric, which decreases movement of the stomach and intestinal muscles, is made from opium tincture (laudanum) or from powdered opium and includes anise oil, camphor, benzoic acid, glycerin, and diluted alcohol. The usual adult dose is 5-10 millilitres. In early medical writings the term paregoric sometimes was used in reference to soothing medicaments in general.