OK: [19] Few English expressions have had so many weird and wonderful explanations offered for their origin as OK. There is still some doubt about it, but the theory now most widely accepted is that the letters stand for oll korrect, a facetious early 19th-century American phonetic spelling of all correct; and that this was reinforced by the fact that they were also coincidentally the initial letters of Old Kinderhook, the nickname of US president Martin Van Buren (who was born in Kinderhook, in New York State), which were used as a slogan in the presidential election of 1840 (a year after the first record of OK in print).
OK
1839, only survivor of a slang fad in Boston and New York c. 1838-9 for abbreviations of common phrases with deliberate, jocular misspellings (such as K.G. for "no go," as if spelled "know go;" N.C. for "'nuff ced;" K.Y. for "know yuse"). In the case of O.K., the abbreviation is of "oll korrect."
Probably further popularized by use as an election slogan by the O.K. Club, New York boosters of Democratic president Martin Van Buren's 1840 re-election bid, in allusion to his nickname Old Kinderhook, from his birth in the N.Y. village of Kinderhook. Van Buren lost, the word stuck, in part because it filled a need for a quick way to write an approval on a document, bill, etc. Spelled out as okeh, 1919, by Woodrow Wilson, on assumption that it represented Choctaw okeh "it is so" (a theory which lacks historical documentation); this was ousted quickly by okay after the appearance of that form in 1929. Greek immigrants to America who returned home early 20c. having picked up U.S. speech mannerisms were known in Greece as okay-boys, among other things.
The noun is first attested 1841; the verb 1888. Okey-doke is student slang first attested 1932.
例文
1. OK .Now，let 's talk some business.
はい、本題に戻りましょう。
2.His doctor wouldn 't OK the trip.
医者は彼の旅行に同意しない。
3.I shouted out "I 'm OK "
私は大声で「私は大丈夫」と叫んだ。
4." OK , whatever you say," he had agreed peaceably.