Fayyumic (also written as Faiyumic; in older works it is often called Bashmuric) was spoken primarily in the Faiyum region west of the Nile Valley. It is attested from the 3rd to the 10th centuries. It is most notable for writing ⲗ, which corresponds to /l/, where other dialects generally use ⲣ /r/ (probably corresponding to a flap ). In earlier stages of Egyptian, the liquids were not distinguished in writing until the New Kingdom, when Late Egyptian became the administrative language. Late Egyptian orthography utilized a grapheme that combined the graphemes for /r/ and /n/ in order express /l/. Demotic for its part indicated /l/ using a diacritic variety of /r/.
Oxyrhynchite (also known as Mesokemic or Middle Egyptian) is the dialect of Oxyrhynchus and surrounding areas. It shows similarities with Fayyumic and is attested in manuscripts from the 4th and 5th centuries.
Read more about this topic: Coptic Language, Dialects, Lower Egypt