Boston accent
On the other hand, the Boston accent merges the "short "o"" with the "aw" phoneme: the two classes exemplified by "caught" and "cot" thus both become an often long and rounded , so that "caught", "cot", "law", "wand", "rock", "talk", "doll", and "wall" all are pronounced with the same vowel. By contrast, New York accents and southern New England accents have for "caught" and for "cot" and the London accents have and , respectively. In Boston and some other parts of New England, a few words ending in , e.g., "hot" and "got", can be pronounced with an entirely different phoneme, however, sounding instead like "hut" and "gut", respectively.
Phonological history of English high back vowels
This has remained as such in some Welsh, northern English, and American accents, so that, in a variety of Welsh English, "threw" is distinct from "through" . In the majority of accents, however, the falling diphthong turned into a rising diphthong, which became the sequence . This change had taken place in London by the end of the 17th century. Depending on the preceding consonant and on the dialect, this either remained as or developed into by the processes of yod-dropping or yod-coalescence. Hence the present-day standard English pronunciations of "duke" (or ), "new" , "few" and "rude" .