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Old English æfre "ever, at any time, always;" no cognates in any other Germanic language; perhaps a contraction of a in feore, literally "ever in life" (the expression a to fore is common in Old English writings).
First element is almost certainly related to Old English a "always, ever," from Proto-Germanic *aiwo, from PIE *aiw- "vital force, life, long life, eternity." (see eon). Liberman suggests second element is comparative adjectival suffix -re.
Really; truly; certainly •Used postpositively for emphasis: Boy, has it ever!/ Clinton's generation has already had its chance to make its tastes the country's tastes. Has it ever/ Did we win? Did we ever!