An improper diphthong is a diphthong in which only one of the vowels is sounded ; as, oa in loaf, eo in people. ... The proper diphthongs appear to be thirteen; ay, aia, ie, io, -oi, ou, ow, oy, aua, ue, ui, uo, uy: of which combinations, only three, ia, io, ... What an admirable passage for one great linguist to steal from an other!
|Title||:||The Grammar of English Grammars|
|Author||:||Goold Brown, Samuel U. Berrian|