What's the difference between i.e. and e.g.?
late 14c., from Old French interpreter (13c.) and directly from Latin interpretari "explain, expound, understand," from interpres "agent, translator," from inter- (see inter-) + second element of uncertain origin, perhaps related to Sanskrit prath- "to spread abroad," PIE *per- (5) "to traffic in, sell" (see pornography). Related: Interpreted; interpreting.