Kama Sutra (n.) Look up Kama Sutra at Dictionary.com
also Kamasutra, 1871, from Sanskrit Kama Sutra, name of the ancient treatise on love and sexual performance, from kama "love, desire," from PIE *ka-mo-, suffixed form of root *ka- "to like, desire" (see whore (n.)) + sutra "series of aphorisms" (see sutra).