Djerv
Djerv or Đerv is one of the Cyrillic alphabet letters that was used in Old Cyrillic. It was used in many early Serbian monuments to represent the sounds and . It exists in the Cyrillic Extended-B table as U+A648 and U+A649. It is the basis of the modern letters Ћ and Ђ; the former was in fact a direct revival of djerv and was considered the same letter.
Djerv is also commonly used in Serbian Cyrillic, where it was an officially used letter. When placed before the letters н and л it represented the sounds and, which are represented by Њ and Љ today, respectively.
It can be transliterated as Ǵ.