sexual stimulation or satisfaction from looking at naked people, most often without their knowledge; a love of looking at people in this way; also called scoptophilia , voyeurism
Greek skopeo 'to view'
"voyeurism," 1924 (in a translation of Freud), from Greek -skopia "observation" (see scope (n.1)) + -philia. In early use often scoptophilia through a mistake by Freud's translators. Modern form by 1937. Related: Scopophiliac.
scopophilia sco·po·phil·i·a (skō'pə-fĭl'ē-ə)n. See voyeurism.