What's the difference between i.e. and e.g.?
late 14c., amonicioun "reminding, instruction," from Old French amonicion "admonition, exhortation," from Latin admonitionem (nominative admonitio), noun of action from past participle stem of admonere (see admonish). Meaning "warning" is early 15c. The -d- was restored in English 17c.