Emily Dickinson Lexicon

RA'CY, a. [This word, if the sense of it is strong, vigorous, would seem to belong to the family of Sax. hræs, force; ræsan, to rush. But the application of it by Cowley in the passage below, seems to indicate its connection with the Sp. and Port. raiz, root, L. radix.]

Strong; flavorous; tasting of the soil; as, racy cider; racy wine. Johnson. Rich racy verses, in which we / The soil from which they come, taste, smelt end see. – Cowley.