measurable (adj.)youdaoicibaDictYouDict[measurable 词源字典]
c. 1300, "moderate," from Old French mesurable "restrained, moderate, sensible; restricted," from Late Latin mensurabilis, from mensurare (see measure (v.)). Meaning "that can be measured" is from mid-14c. Related: Measurably.[measurable etymology, measurable origin, 英语词源]