Emily Dickinson Lexicon

YACHT, n. [yot; D. jagt; G. jacht, from jagen. It is properly a boat drawn by horses.]

A vessel of state used to convey princes, embassadors, and other great personages from one place to another. The royal yachts are rigged as ketches, except the principal one, which is equipped as a ship. The smaller yachts are rigged as sloops. – Mar. Dict.