idem

See also: Idem, IDEM, and ídem

English

Etymology

From Latin idem (“the same”).

Pronunciation

• IPA^(key): /ˈaɪ.dɛm/, /ˈɪ.dɛm/

Adjective

idem (not comparable)

1. The same.

Derived terms

• id. or id
• idempotence, idempotent

Usage notes

• Used almost exclusively in footnotes of academic or scholarly papers, especially those of the legal profession, to indicate that the source or author referred to in a footnote is the same as in the preceding footnote; usually abbreviated when so used.

Anagrams

• Demi, Diem, Dime, demi, demi-, dime, meid

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Dutch

Pronunciation

• Audio

  (file)

Adverb

idem

1. idem, ditto

Anagrams

• meid

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French

Pronunciation

• IPA^(key): /i.dɛm/

Adverb

idem

1. idem, likewise

Anagrams

• demi, dîme

Further reading

• “idem” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).

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Italian

Pronunciation

• IPA^(key): /ˈidem/
• Hyphenation: ì‧dem

Adverb

idem

1. ditto, and so, likewise, also

Pronoun

idem

1. ditto, the same

Anagrams

• dime, medi

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Latin

Alternative forms

• eidem (frequently in manuscripts and inscriptions)
• isdem, eisdem (rarely)

Etymology

From the pronoun is (“he”) + Proto-Italic *-im (emphatic marker) (whence Sabellic *-om, Oscan 𐌝𐌔𐌝𐌃𐌖𐌌 (ísídum), 𐌄𐌔𐌝𐌃𐌖𐌌 (esídum)), from Proto-Indo-European *im (whence also Old Latin im, em), accusative singular of *éy (so both parts are from the same source). The s was lost and the i lengthened by compensatory lengthening.

When the ablative cases eōd, eād became eō, eā, the true forms eōd-em, eād-em were interpreted as eō-dem, eā-dem. The neuter nominative singular id-em is natural and gives earlier emem (= later eundem). The new marker -dem then served to create totidem, tantumdem, ibīdem, etc. Compare tam-en with its later doublet: tan-dem (← *tam-dem).

Pronunciation

• (Classical) IPA^(key): /ˈiː.dem/, [ˈiː.dẽ]

Determiner

īdem m (feminine eadem, neuter idem)

1. the same (usually with ablative)
   • 29 bc. Vergil. Georgics, III

     amor omnibvs idem

     Sex is the same for all of them [viz., every form of man, beast, aquatic or winged life, and livestock]

Inflection

Irregular declension. Similar to the declension of is, ea, id. Irregular: similar to first and second declensions, except for genitive singular ending in -ius and dative singular ending in -ī.

Number	Singular				Plural
Case / Gender	Masculine	Feminine	Neuter		Masculine	Feminine	Neuter
nominative	īdem	eadem	idem		eīdem īdem	eaedem	eadem
genitive	eiusdem ejusdem				eōrundem	eārundem	eōrundem
dative	eīdem				eīsdem īsdem
accusative	eundem	eandem	idem		eōsdem	eāsdem	eadem
ablative	eōdem	eādem	eōdem		eīsdem īsdem

Derived terms

• īdenticus
• īdentidem
• īdentitās

References

• idem in Charlton T. Lewis and Charles Short (1879) A Latin Dictionary, Oxford: Clarendon Press
• idem in Charlton T. Lewis (1891) An Elementary Latin Dictionary, New York: Harper & Brothers
• “idem” in Félix Gaffiot’s Dictionnaire Illustré Latin-Français, Hachette (1934)
• Carl Meissner; Henry William Auden (1894) Latin Phrase-Book^[1], London: Macmillan and Co.
  • to hold the same views: idem sentire (opp. dissentire ab aliquo)
    
  • to agree with a person: consentire, idem sentire cum aliquo
    
  • to have the same meaning: idem valere, significare, declarare
    
  • synonyms: vocabula idem fere declarantia
    
  • to have the same political opinions: idem de re publica sentire
    
• Sihler, Andrew L. (1995) New Comparative Grammar of Greek and Latin, Oxford, New York: Oxford University Press

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Portuguese

Pronoun

idem

1. (demonstrative) the aforesaid; ditto

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Serbo-Croatian

Verb

idem (Cyrillic spelling идем)

1. first-person singular present tense form of ići.