logger (n.1)youdaoicibaDictYouDict[logger 词源字典]
"one who fells or cuts trees," by 1708, agent noun from log (v.1).[logger etymology, logger origin, 英语词源]
logger (n.2)youdaoicibaDictYouDict
"one who enters data in a log," 1958, agent noun from log (v.2).