preantepenultimate

Nominal sense attested since 1746; adjectival sense attested since 1791: pre- +‎ antepenultimate.

• (Received Pronunciation) enPR: prē'ăn'tĭpĭnŭlʹtĭmət, IPA^(key): /ˌpɹiːˌæntɪpɪˈnʌltɪmət/,
• (General American) enPR: prē'ăn'tipənəlʹtəmət, prē'ăn'təpənəlʹtəmət, IPA^(key): /ˌpɹiˌæntipəˈnʌltɪmət/, /ˌpɹiˌæntəpəˈnʌltəmət/,

• Audio (General American):

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preantepenultimate (plural preantepenultimates)

1. (chiefly phonetics, obsolete, rare) preantepenult
   • 1830, John Walker, A Key to the Classical Pronunciation of Greek, Latin, and Scripture Proper Names, New York, N.Y.: J.F. Dove, page 169:

     Accent the Preantepenultimate.

• (names of syllables): ultima, ult (last); penultima, penultimate, penult (last but one); antepenultima, antepenultime, antepenultimate, antepenult (last but two); preantepenultima (præantepenultima), preantepenultimate, preantepenult (last but three); propreantepenultimate, propreantepenult (last but four)

preantepenultimate (not comparable)

1. (chiefly phonetics and biology) Three before the end; fourth to last.
   • 1874, Andrew Leith Adams, On the Dentition and Osteology of the Maltese Fossil Elephants, Zoological Society of London, page 10:

     First or Preantepenultimate Milk-molar; Second or Ante- penultimate Milk-molar.

   • 1992, Ulrike Mosel, Even Hovdhaugen, “Phonology and orthography”, in Samoan Reference Grammar‎, Oslo: The Institute for Comparative Research in Human Culture; Scandinavian University Press, via National Library of Norway, →ISBN, page 27:

     In the tautala leaga the shortening of normal vowels in the antepenultimate and preantepenultimate syllables is very common.

   • 2010, Editors Martin Maiden, John Charles Smith, Adam Ledgeway, The Cambridge History of the Romance Languages: Volume 1, Structures, Cambridge University Press, →ISBN, page 82:

     …PWs with preantepenultimate and even fifth-but-last stress occur,…

• (adjectives denoting syllables): ultimate (last), penultimate (last but one), antepenultimate (last but two), propreantepenultimate (last but four)