probably
UK: ˈprɒbəbli | US: ˈprɑːbəbli
adv. with high likelihood; almost certainly
adv. used to express cautious agreement or assumption
The word "probably" derives from the Latin probabilis ("provable, credible"), which stems from probare ("to test, prove"). The root prob- (meaning "prove" or "test") merged with the adverbial suffix -ly (from Old English -lice), transforming the adjective "probable" (later "probable") into an adverb. Over time, "probably" shifted from indicating provability to expressing likelihood or near certainty, reflecting a broader semantic evolution in English.
She will probably arrive by noon.
This is probably the best solution available.
"Will it rain tomorrow?" "Probably not."
He probably forgot about the meeting.
The project will probably take three months to complete.