What's the difference between i.e. and e.g.?
late 15c., "appease, allay the anger of (someone)," from Middle French pacifier "make peace," from Latin pacificare "to make peace; pacify," from pacificus (see pacific). Of countries or regions, "to bring to a condition of calm," c.1500, from the start with suggestions of submission and terrorization. Related: Pacified; pacifying.