Abdul (also transliterated as Abdal, Abdel, Abdil, Abdol, Abdool, or Abdoul; Arabic: عبد ال, ʿAbd al-) is the most frequent transliteration of the combination of the Arabic word Abd (عبد, meaning "Servant") and the definite prefix al / el (ال, meaning "the"). It is the initial component of many compound names, such as عبد الحميد ʿAbd al-Ḥamīd (usually spelled Abdel Hamid, Abdelhamid, Abd El Hamid or Abdul Hamid; lit. "servant of the Praised"), عبد الله ʿAbd Allāh (Abdullah), and عبد الملك ʿAbd al-Malik (Abdul Malik).
https://en.wikipedia.org/wiki/Abdul