What's the difference between i.e. and e.g.?
early 15c., "spread out, spread flat," from Anglo-French espaundre, Middle French espandre and directly from Latin expandere "to spread out, unfold, expand," from ex- "out" (see ex-) + pandere "to spread, stretch" (see pace (n.)). Sense of "grow larger" first recorded 1640s. Related: Expanded; expanding.