forgo (v.)youdaoicibaDictYouDict[forgo 词源字典]
"refrain from," Old English forgan "abstain from, leave undone, neglect," also "go or pass over, go away," from for- "away" + gan "go" (see go (v.)). Often, but less properly, forego. Related: Forgoing; forgone. [forgo etymology, forgo origin, 英语词源]