frame (n.)youdaoicibaDictYouDict[frame 词源字典]
c. 1200, "profit, benefit, advancement;" mid-13c. "a structure composed according to a plan," from frame (v.) and in part from Scandinavian cognates (Old Norse frami "advancement"). In late 14c. it also meant "the rack."

Meaning "sustaining parts of a structure fitted together" is from c. 1400. Meaning "enclosing border" of any kind is from c. 1600; specifically "border or case for a picture or pane of glass" from 1660s. The meaning "human body" is from 1590s. Of bicycles, from 1871; of motor cars, from 1900. Meaning "separate picture in a series from a film" is from 1916. From 1660s in the meaning "particular state" (as in Frame of mind, 1711). Frame of reference is 1897, from mechanics and graphing; the figurative sense is attested from 1924.[frame etymology, frame origin, 英语词源]