early 15c., "carnal, unspiritual;" mid-15c., "of or pertaining to the senses," from Middle French sensuel (15c.) and directly from Late Latin sensualis "endowed with feeling" (see sensuality). Meaning "connected with gratification of the senses," especially "lewd, unchaste" is attested from late 15c.[sensual etymology, sensual origin, 英语词源]