What's the difference between i.e. and e.g.?
late 14c., "praise, present as worthy," from Medieval Latin recommendare, from Latin re-, here probably an intensive prefix, or else from a sense now obscure (see re-), + commendare "commit to one's care, commend" (see commend). Meaning "advise as to action, urge (that something be done)" is from 1746. Related: Recommended; recommending.