I.e. and e.g. are both Latin abbreviations. E.g. stands for exempli gratia and means “for example.” I.e. is the abbreviation for id est and means “in other words.” Remember that E is for example (e.g.) and that I and E are the first letters of in essence, an alternative English translation of i.e.
But why bother with all this Latin? Don’t we have enough abbreviations in English?
Think about it.