What's the difference between i.e. and e.g.?
late 14c., "action of dedicating," from Old French dedicacion (14c., Modern French dédication) "consecration of a church or chapel," or directly from Latin dedicationem, noun of action from dedicare (see dedicate). Meaning "the giving of oneself to some purpose" is c.1600; as an inscription in a book, etc., from 1590s.