> The front mid rounded vowel /ø(ː)/ occurs in the Anglian dialects, for instance, but merged into /e eː/ in the West Saxon dialect.
The long–short vowel pair /æ æː/ developed into the Middle English vowels /a ɛː/, with two different vowel qualities distinguished by height, so they may have had different qualities in Old English as well.[4]
The short open back vowel /ɑ/ before nasals was probably rounded to [ɒ]. This is suggested by the fact that the word for "person", for example, is spelled as mann or monn.