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locusta ‎(plural locustae)

  1. (botany) The spikelet or flower cluster of grasses.
    (Can we find and add a quotation of Gray to this entry?)

Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.



From Latin locusta.


locusta f ‎(plural locuste)

  1. locust


Alternative forms[edit]


The origin is uncertain. According to De Vaan, the only word similar in form and meaning is lacerta ‎(lizard; mackerel) and “they could be cognate words in the language from which Latin borrowed these forms”. Pokorny connects locusta and lacerta with Ancient Greek λάξ ‎(láx) λάγδην ‎(lágdēn, with the foot, adverb), λάκτις ‎(láktis, pestle), λικερτίζειν ‎(likertízein, to jump, to dance) and Old Norse leggr ‎(lower leg, bone), Lombardic [script needed] ‎(lagi, thigh), deriving all from Proto-Indo-European *lek- ‎(joint, member; to bend, to wind), explaining locusta as “equipped with joints”. This is considered unconvincing by De Vaan.



locusta f ‎(genitive locustae); first declension

  1. locust, grasshopper
  2. crustacean, marine shellfish, lobster


First declension.

Case Singular Plural
nominative locusta locustae
genitive locustae locustārum
dative locustae locustīs
accusative locustam locustās
ablative locustā locustīs
vocative locusta locustae

Derived terms[edit]

Related terms[edit]



  • Julius Pokorny (1959), Indogermanisches etymologisches Wörterbuch, in 3 vols, Bern, München: Francke Verlag, volume II, page 673
  • “locusta” in Alfred Ernout, Antoine Meillet (2001), Dictionnaire étymologique de la langue latine (4th edition), Paris: Klincksieck, page 365ab
  • “locusta” in Michiel de Vaan (2008), Etymological Dictionary of Latin and the other Italic Languages, Leiden, Boston: Brill Academic Publishers, pages 347, 348