exasperate
Cross references: 1. irritate 1. ex.as.per.ate \ig-'zas-p*-.ra-t\ vt [L exasperatus, pp. of exasperare, fr. ex- + asper roug]h 1a: to excite or inflame the anger of : ENRAGE 1b: to cause irritation or annoyance to obs 2: to make grievous or more grievous or malignant 2. ex.as.per.ate \-r*t\ aj 1: EXASPERATED 2: roughened with irregular prickles or elevations {~ seed coats>