The words quoted indicate the nature of the Diphthongal system.
"The English Language"
Robert Gordon Latham
In common conversation we pronounce the i in wind, like the i in bit; in rehearsing, or in declamation, however, we pronounce it like the i in bite; that is, we give it a Diphthongal sound.
"The English Language"
Robert Gordon Latham
With Englishmen it has a Diphthongal power.
"The English Language"
Robert Gordon Latham