Origin of triphthong
Examples from the Web for triphthong
Trigraph, trī′graf, n. a combination of three letters sounded as one, a triphthong.
This triphthong (aye) is a combination of the slender sound of a, heard in pa-per; and the e in metre.
Triphthong, trif′thong, n. a combination of three vowels to form one sound.
Only the first two of these four words contain a triphthong.Frdric Mistral|Charles Alfred Downer