inflame (v.) Look up inflame at Dictionary.com
mid-14c., "to set on fire with passion," from Latin inflammare "to set on fire, kindle," figuratively "to rouse, excite," from in- "in" (see in- (2)) + flammare "to flame," from flamma "flame" (see flame (n.)). Literal sense of "to cause to burn" first recorded in English late 14c.