A diphthong sounds quite like a beast,
As big as a camel,at least.
But it consists of two vowels,
Which might make a cat yowl,
As they marry and form just one piece.
Mauve has one spelled “au”.
When pronounced it sounds quite like an O.
Historical inheritance
Makes English a powerhouse.
But don’t go to the meadow to mau.
In meadow ea rhymes with e as in bed
As Oscar Wilde probably said
For he was very clever,
Although he was never
Thought enough of until he was dead.
Manley Hopkins was a great English poet;
A priest too, with a life hard and heroic.
He’d have elected for silence
But got sent to Ireland.
By self control he became what’s called stoic.
And how about William Blake?
Would ia be a diphthongal mistake?
Are all vowels side by side
Diphthongs as defined?
Look, another pair’s there minds to slake.
Well I think I may have written sufficient
As my mind feels both lazy and inefficient
But these intriguing rare words
Are like humming birds
Some other tongues might seem deficient

Beautiful. Spoiler alert! Triphthong 🙂
I wonder if there are any words with three vowels next to each .other?Interesting,David