Examples: cartography card archaeology archetype monarchy legal loyal purse personal cinema kinase car carpenter hippopotamus Mesopotamia dative data date
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Ancient Greek δίφθογγος
Ancient Greek δι- (affix)
Ancient Greek φθόγγος (affix)

English diphthong (derived)
Catalan diftong (derived)
Danish diftong (derived)
Spanish diptongo (derived)
Finnish diftongi (derived)
French diphtongue (derived)
Hungarian diftongus (derived)
Indonesian diftong (derived)
Italian dittongo (derived)
Latin diphthongus (derived)
Ligurian ditóngo (derived)
Latvian diftongs (mention)
Norwegian Bokmål diftong (derived)
Dutch diftong (derived)
Norwegian Nynorsk diftong (derived)
Portuguese ditongo (mention)