Emily Dickinson Lexicon

GROOM, n. [Pers. خَرْمَا garma, a keeper of horses. Qu. Flemish or old D. grom, a boy.]

1. A boy or young man; a waiter; a servant.
2. A man or boy who has the charge of horses; one who takes care of horses or the stable.
3. In England, an officer of the king's household; as, the groom of the chamber; groom of the stole or wardrobe.
4. Groom for goom, in bridegroom, is a palpable mistake. Groom of the state, in England, the first lord of the bed-chamber.