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Etymology 1[edit]

From Medieval Latin castellātus (fortified, castellate) + -ed (forming past participles). Equivalent to the past participle of castellate but attested earlier than other uses of the verb.


castellated (not comparable)

  1. Castle-like: built or shaped like a castle.
    • 1686, Robert Plot, chapter X, in The Natural History of Stafford-shire, page 448:
      ...A Castellated mansion...
    • 2004, Colm Toibin, The Master, page 2:
      Finally he walked slowly into a vast Italian space, with towers and castellated roofs, and a sky the colour of dark blue ink, smooth and consistent.
    • 2020 August 26, Tim Dunn, “Great railway bores of our time!”, in Rail, page 46:
      Three castellated (with battlements) towers stand sentry here, with one being particularly large. This is said to have been used by Rhodes as a belvedere, and (according to some sources) by railway staff for some time after opening.
  2. (engineering) Having grooves or recesses on an upper face.
    • 1904, Alexander Bell Filson Young, chapter IV, in The Complete Motorist, page 74:
      Castellated nuts are used throughout, with split pins.
  3. Castled: having or furnished with castles.
    • 1809, Robert Ker Porter, chapter IV, in Travelling Sketches in Russia & Sweden, volume I, page 30:
      ...This castellated island...
  4. (rare) Housed or kept in a castle.
    • 1837, Walter Savage Landor, Works, volume II, page 317:
      His unbiassed justice... struck horror into the heart of every castellated felon.
Derived terms[edit]
Related terms[edit]

Etymology 2[edit]

From Medieval Latin castellum (cistern).


castellated (not comparable)

  1. (obsolete) Synonym of enclosed, when used for fountains, cisterns, &c.


  • "castellated, adj.", in the Oxford English Dictionary, Oxford: Oxford University Press