Mujaddid
No. 'Mujaddid' is an Arabic active-participle derived from the root ج-د-د (to renew). It is used in scholarly and historical contexts rather than appearing as a proper noun in the Qur'an.
Yes. Scholars have used the term 'mujaddid' to describe figures believed to have renewed or reformed religious practice; the concept appears in hadith literature and later scholarly discussion about religious renewal.
It is rare but used. Some families choose it for its reformist and scholarly connotations; others reserve it as a title rather than a common personal name.
Mujaddid is the active participle pattern (mufʿaDD) derived from the verb جَدَّدَ (ja-dda-da) meaning 'to renew'.
The label 'mujaddid' has been applied by scholars to various historical reformers; usage and attribution vary by scholarly tradition and regional historiography.