English edit

Etymology edit

diphthong +‎ -ic

Adjective edit

diphthongic (not comparable)

  1. Of the nature of diphthong; diphthongal.
    • 1874, Henry Sweet, A History of English Sounds from the Earliest Period:
      The old-diphthongic ou was sharply distinguished from the new-diphthongic ou

References edit

diphthongic”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.