Emily Dickinson Lexicon

GUST, n.¹ [L. gustus, It. Sp. gusto, Fr. goût, taste; L. gusto, G. kosten, W. çwaethu, to taste; Gr. γευω, a contracted word, for it has γευσις, taste; W. cwaeth, id.]

1. Taste; tasting, or the sense of tasting. More generally, the pleasure of tasting; relish. Tillotson.
2. Sensual enjoyment. Where love is duty on the female side, / On theirs, mere sensual gust, and sought with surly pride. Dryden.
3. Pleasure; amusement; gratification. Destroy all creatures for thy sport or gust. Pope.
4. Turn of fancy; intellectual taste. A choice of it may be made according to the gust and manner of the ancients. Dryden. [Taste is now generally used.]