idem

American  

[ahy-dem, id-em] / ˈaɪ dɛm, ˈɪd ɛm /

pronoun

1. the same as previously given or mentioned.

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idem British  

/ ˈaɪdɛm, ˈɪdɛm /

1. the same: used to refer to an article, chapter, etc, previously cited

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Etymology

Origin of idem

1350–1400; Middle English < Latin īdem

Explanation

In legal or academic writing, idem is used in footnotes to mean "the same as previously mentioned." For a research paper, you can use idem to indicate you're citing a different page of the exact same source. The Latin idem means "the same," and it's usually abbreviated as id. These days, most academics prefer to use the term ibid., or "in the same place," in scholarly bibliographies, or to simply repeat the author's last name. If you do come across idem in footnotes, endnotes, or a legal document, you'll know it means "this information comes from the same work and author as the last citation."

Example Sentences

See Examples For:

idem

Yet the very word “identity” points toward the trouble: It comes from the Latin idem, meaning “the same.”

From New York Times ● Aug. 10, 2018

But banned are such standard and numbing footnote fare as ed. cit., loc. cit., op. cit., idem and ibid.

From Time Magazine Archive

But again, while his will is suspended in a great crisis of the action, their operation is persistent and inevitable:— Rex Iuppiter omnibus idem: Fata viam invenient524.

From The Roman Poets of the Augustan Age: Virgil by Sellar, W. Y.

To these may be added, egomet, I myself; tute, thou thyself, idem the same, qui, who or what, and cujas, of what country.

From The Comic Latin Grammar A new and facetious introduction to the Latin tongue by Leech, John

I was acquainted with the soldier's superstition that the axiom non bis in idem holds good as much on the battlefield as in the court of justice.

From Abb? Aubain and Mosaics by M?rim?e, Prosper