untouched (adj.)youdaoicibaDictYouDict[untouched 词源字典]
late 14c., "not been physically contacted," from un- (1) "not" + past participle of touch (v.). Meaning "unharmed, uninjured" is from c. 1400; that of "not used at all" is from 1530s; sense of "unmoved emotionally" is from 1610s.[untouched etymology, untouched origin, 英语词源]