Simply means in an easy, plain, or straightforward way, without extra things. It is also used for emphasis, as in “I simply can’t do it.”
“Simply” is formed from “simple” plus the adverb suffix “-ly.” “Simple” comes from Latin “simplex,” meaning single or plain. The adverb carries over the sense of lack of complexity or ornament.
When someone says, ‘Put simply,’ they’re promising to unfold complexity and show you the flat version. But in ‘I simply love it,’ the word loses its literal meaning and becomes pure emotional emphasis. English often lets plain words like this double as intensifiers.
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