size (v.)youdaoicibaDictYouDict[size 词源字典]
c. 1400, "to regulate," from size (n.). Meaning "to make of a certain size" is from c. 1600; that of "to classify according to size" is first attested 1630s. Verbal phrase size up "estimate, assess" is from 1847 and retains the root sense of size (n.). Related: Sized; sizing.[size etymology, size origin, 英语词源]