As a more specific term
At times dragonkin may refer exclusively to non-dragon dragonkin.
The term dragonkin has been used to refer to a category that seemingly includes both dragonspawn and drakonids. Some dragonspawn are known as "dragonkin", like the Elder Dragonkin and the Twilight Dragonkin. They are called such as a whole in Quest:The Essence of Enmity. Maxnar the Ashmaw, a drakonid, is described as "one of the dragonkin, half-man, half-dragon." The dragonkin originate when dragons empower mortal servants, changing them into something halfway. This process does not have to be willing. They are separate races from the dragon race. They became dragonspawn and drakonid thanks to the dragons they served (via intentional alteration or via "unintended side effect of hanging out with dragons").