attainment (n.)youdaoicibaDictYouDict[attainment 词源字典]
late 14c., "encroachment" (a sense now obsolete), from Old French ataignement (Modern French atteignement), from ataindre; see attain. Meaning "action of attaining" is from 1540s; sense of "that which is attained, personal accomplishment" dates from 1670s.[attainment etymology, attainment origin, 英语词源]