
1) Ancient Semitic religion 2) Forgotten Realms character 3) Hebrew boy name 
Found on 
https://www.crosswordclues.com/clue/adon

Adon is a Hebrew name for boys. The meaning is `fire, paradise` The name Adon is most commonly given to American boys. What do they use in other countries? Eden (English) Ayden (Greek) Aiden (English) Aidan (English, Scottish, Irish) Aidyn (English) Aden (English) Aydan (English) Aydin (English) Adonai Adonia Edan (Irish, Scottish) Adyn Aedyn Adin ...
Found on 
https://www.pregnology.com/names/boys/Adon
  No exact match found.