growing (adj.)youdaoicibaDictYouDict[growing 词源字典]
Old English, present participle adjective from grow (v.). Growing season is attested from 1729; growing pains by 1752.[growing etymology, growing origin, 英语词源]
growing (n.)youdaoicibaDictYouDict
late 14c., "a gradual increase, action of causing to increase," verbal noun from grow (v.). Meaning "that which has grown, a crop" is from 1540s. Dialectal growsome "tending to make things grow" is from 1570s.
harrowing (adj.)youdaoicibaDictYouDict
"extremely distressing, painful," 1799 (implied in harrowingly), from present participle of harrow (v.).