metric (adj.)youdaoicibaDictYouDict[metric 词源字典]
"pertaining to the system of measures based on the meter," 1855, from French métrique, from mèter (see meter (n.2)). In this sense, metrical is attested from 1797.[metric etymology, metric origin, 英语词源]
metric (n.)youdaoicibaDictYouDict
"science of versification," 1760, from Greek he metrike "prosody," plural of metron "meter, a verse; that by which anything is measured; measure, length, size, limit, proportion" (see meter (n.2)).