notch: [16] Not much is known for certain about the word notch, apart from the fact that its immediate source, Anglo-Norman noche, existed at least a couple of centuries before English acquired it. There may well be some connection with Old French oche ‘groove, notch’ (probable source of the English darts term oche ‘line where the dart-thrower stands’); the initial n could well have arisen by misdivision of a preceding indefinite article (as happened with nickname). => oche
notch (n.)
1570s, probably a misdivision of an otch (see N for other examples), from Middle French oche "notch," from Old French ochier "to notch," of unknown origin. Said to be unconnected to nock.
notch (v.)
1590s, from notch (n.). Earlier verb (before misdivision) was Middle English ochen "to cut, slash" (c. 1400). Related: Notched; notching.
例文
1. The quality of the food here has dropped a notch recently.
ここの料理の質は最近1段下がった。
2.He is keen to notch up yet another success.
彼は再び成功することを望んでいる。
3.A sesame stalk puts forth blossoms notch by notch 、higher and higher.
ゴマ開花節高.
4.The peanuts they grow are top- notch .
彼らが植えた落花生は尖っている。
5.In this country the good players are pulled down a notch or two.