henchman

The earliest known examples of henchman in written English show it being used as a term for a squire or a page, but the word may have seen earlier use with the meaning "groom." It first appeared in Middle English at the beginning of the 15th century and is a combination of Old English hengest ("a male horse") and man. In the late 1700s, henchman began to be used for the personal attendant of a Scottish Highland chief. This sense, made familiar to many English readers by Sir Walter Scott, led to the word's use in the broader sense of "right-hand man," which in turn evolved into the other meanings.