antibody (English)

Where does "antibody" come from?

The English word 'antibody' was formed as a calque of the German 'Antikörper'[1]. This formation combines the prefix 'anti-' with 'body'[1]. The latter term traces back through Middle English 'bodi' and Old English 'bodiġ' to the Proto-West Germanic '*bodag'[2][8]. While 'Körper' originates from the Latin 'corpus'[5], the English component 'body' descends from the Proto-Indo-European root '*bʰewdʰ-', which originally meant 'to be awake' or 'observe'[2][6].

Open questions

The derivation of the umlaut in the German 'Körper' remains debated, as its development from the Latin 'corporis' is considered unlikely due to the late timing of the borrowing. [5]
The link between the Proto-Indo-European root '*bʰewdʰ-' and the Proto-Germanic noun '*bodag' is a reconstructed historical connection. [2] [6]

Full etymology tree

antibody (English), 'A protein produced by B-lymphocytes that binds to a specific antigen.'
- affix anti- (English), 'Against, opposed to.'
- compound body (English), 'Physical frame.'
  - inherited bodi (Middle English), 'body (physical structure)'
    - inherited bodig (Old English), 'stature'
      - inherited *bodag (Proto-West Germanic), 'body, trunk, corpse'
        inherited *budagą (Proto-Germanic)
        inherited *bʰewdʰ- (Proto-Indo-European), 'to be awake, be aware'

Ancestors

anti- (English)
body (English)
Antikörper (German)

Descendants and derived words

abzyme (English)
agonistic monoclonal antibody (English)
alloantibody (English)
anti-antibody (English)
antiantibody (English)
antibody-mediated rejection (English)
antibodyome (English)
anti-nuclear antibody (English)
autoantibody (English)
cold antibody (English)
coproantibody (English)
donor-specific antibody (English)

Sources

Updated August 2026

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Etymology data from Wiktionary, CC BY-SA 4.0 · About Miraris