c.1380, "science of optics," from O.Fr. perspective, from M.L. perspectiva ars "science of optics," from fem. of perspectivus "of sight, optical" from L. perspectus, pp. of perspicere "inspect, look through," from per- "through" + specere "look at" (see scope (1)). Sense of "art of drawing objects so as to give appearance of distance or depth" is first found 1598, influenced by It. prospettiva, an artists' term. The fig. meaning "mental outlook over time" is first recorded 1762.