1605, from Fr. posture (16c.), from It. postura "position, posture," from L. positura "position, station," from postulus, pp. of ponere "put, place" (see position). The verb, in the fig. sense of "to take up an artificial mental position" is attested from 1877. Posturpedic trademark name (Sealy, Inc., Chicago) for a brand of mattress, filed in 1951.