Summary

Peter Giles 1911 Encyclopædia Britannica, Volume 12… (1911)

In English the history of h is very similar to that in Latin. While the parts above the glottis are in position to produce a vowel, an aspirate is produced without vibration of the vocal chords, sometimes, like the pronunciation of Arrius, with considerable effort as a reaction against the tendency to “drop the h’s.” Though h survives in Scotland, Ireland and America as well as in the speech of cultivated persons, the sound in most of the vulgar dialects is entirely lost.
Source: Wikisource

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