Here's a breakdown of its origins:
* Old English: The phrase likely originates from the Old English phrase "for soth," which literally translates to "for truth." This phrase was used to emphasize the certainty or truth of a statement.
* Middle English: During the Middle English period (1150-1500), "for soth" evolved into "for sooth," and "for sure" became a more common and informal equivalent.
* Modern English: The shift from "for sooth" to "for sure" is likely due to the increasing influence of spoken language and the desire for simpler, more direct expressions.
Here are some additional insights:
* Regional variations: "For sure" is used widely in English, but there are regional variations. In some dialects, especially in North America, the phrase may be shortened to "for shure" or even "for sho."
* Evolution of meaning: While originally implying absolute certainty, "for sure" has evolved to express a more general sense of confidence or agreement. It can be used in casual conversation and even sarcastically.
So, while "for sure" originated in a formal expression like "for soth," it has taken on a more relaxed and colloquial meaning over time, becoming a staple of everyday English.