Spelling.School · How to spell

How to spell surely

hear itsure·ly/'ʃʊrli/adverbSilent and tricky

What it means: Certainly or without any doubt.

In a sentence: Surely the sun will shine tomorrow.

The part people get wrong

Often misspelled as sureley or surley.

Same family: sure, surety, surefire, surest, unsure. If you can spell one, the shared part carries to the others.

Where it comes from: “Surely” comes from the adjective “sure,” which came into English from Old French and ultimately from Latin *securus*, meaning ‘safe’ or ‘free from care.’ Over time, adding the -ly ending turned it into an adverb used to express confidence or strong belief.

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