[1] The word was originally rather grander in status, as in bridegroom and the socially-elevated offices in the English Royal Household of: The meaning "man servant who attends to horses" is from 1667[2] although women and girls are often grooms.
[3] Grooms may be employed in private residences or in professional horse training facilities such as stables, agistment properties and riding academies.
A groom in private service is expected to be 'on call' during specified hours in case any member of the employer's family wishes to ride.
Stablehand is a more old-fashioned term; the variation stableman usually applies to an experienced adult, the lowest rank stableboy (corresponding to the first origin of groom) rather to a minor and/or trainee.
Several other words originally denoting other (often much higher) titles, notably Constable, Equerry and Marshal, have developed into terms for those working with horses.