Talk:Warlock/@comment-2600:1700:82B0:3870:E4D2:BD2D:87BA:3B71-20180114071233

The "a warlock was born with magic but a sorcerer studies it" thing was never confirmed in canon.

Merlin is the only one who is ever referred to as a warlock, but others were seemingly born with magic (such as Mordred).