humanum est errare (L.). To err is human.

Ibidem (L.). At the same place (in a book).

ich dien (Ger.). I serve.

id est (L.). That is; contracted to i.e.

impedimenta (L.). Baggage.

imperium in imperio (L.). A government or rule within another.

index expurgatorius (L.). A list of prohibited books.

in esse (L.). In being; in actuality.

in extenso (L.). At full length.

in extremis (L.). At the point of death.