1historical A young page of honour, a boy attendant. Compare "henchman".
In the 17th century, typically used of a liveried page who travelled on foot alongside the horse or carriage of an official dignitary (especially a mayor or sheriff) in processions, marches, etc.
2A boy who is a loyal follower, supporter, or helper, especially one prepared to engage in crime or violence on behalf of his leader; a young henchman.
Early 16th century. From hench- + boy.