Ever is defined as always, at all times, in any way or at any time.(adverb)
An example of ever used as an adverb is in the sentence, "If you ever need help, please call me," which means that if you need help at any time, you should call me.
See ever in Webster's New World College Dictionary
Origin: ME < OE æfre, prob. < WGmc bases of OE a, always, ever (see aye) + ? feorr, far
See ever in American Heritage Dictionary 4
Origin: Middle English
Origin: , from Old English ǣfre; see aiw- in Indo-European roots.
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