| Djerv (ꙉєрвъ) | |
|---|---|
| Ꙉ ꙉ | |
| Usage | |
| Writing system | Cyrillic |
| Type | Alphabetic |
| Sound values | /dʑ/, /tɕ/ |
| History | |
| Descendants | Ћ ћ |
Djerv or Đerv (/dʒɜːrv/, JƏRV; Majuscule: Ꙉ, Minuscule: ꙉ) is one of the Cyrillic alphabet letters that was used in Old Cyrillic. It was used in many early Serbo-Croatian monuments to represent the sounds /dʑ/ and /tɕ/ (modern đ/ђ and ć/ћ). 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 /ɲ/ and /ʎ/, which are represented by Њ and Љ today, respectively.
It can be transliterated as Ǵ.

The letter Ђ was formed in 1818 by Vuk Stefanović Karadžić after several proposals of reforming Djerv by Lukijan Mušicki and Gligorije Geršić. However the letter Ћ (also based on djerv) was first used by Dositej Obradović in a direct reform of djerv.
| Preview | Ꙉ | ꙉ | ||
|---|---|---|---|---|
| Unicode name | CYRILLIC CAPITAL LETTER DJERV | CYRILLIC SMALL LETTER DJERV | ||
| Encodings | decimal | hex | dec | hex |
| Unicode | 42568 | U+A648 | 42569 | U+A649 |
| UTF-8 | 234 153 136 | EA 99 88 | 234 153 137 | EA 99 89 |
| Numeric character reference | Ꙉ | Ꙉ | ꙉ | ꙉ |
За́то је само код Срба актуализовано слово ђерв из глагољице.[That is why the Glagolitic letter 'đerv' was revived only among the Serbs.]
Има га само српска ћирилица где се јавља као угласто и обло (као чаша) ђерв. [It exists only in the Serbian Cyrillic script, where it appears as both an angular and a rounded (cup-shaped) đerv.]
Петар Ђорђић је с правом истакао да историја српске ћирилице почиње с појавом слова „ђерв", као њој особенога словнога знака. [Petar Đorđić correctly pointed out that the history of the Serbian Cyrillic script begins with the appearance of the letter đerv as a character distinctive to it.]
Облик му је у Вуковој азбуци дао песник Лукијан Мушицки