Dictionary entry

Exasperate

Webster's Dictionary 1913

Ex‐as″per‐ate (?), a. [L. exasperatus, p. p. of exsasperare to roughen, exasperate; ex out (intens.) + asperare to make rough, asper rough. See Asperity.] Exasperated; imbittered. Shak.

Like swallows which the exasperate dying year

Sets spinning. Mrs. Browning.