consonants: consonantal interchange (l > n?; since the name is found after υἱός, where a genitive is in place, the -ⲛ may indeed be genitival, remaining from the translation of the Old Nubian ⲉⲧⲧⲓⲛⲉⲛ ⳟⲁⲗ into Greek)
consonants: simplification of consonantal geminates (nn > n)?; regressive assimilation (n+ng > ngng)? other phenomena: dropping of genitival -(i)n-?; deletion of syllable in Auslaut; dropping of final /l/; final /a/