...; that good and bad actions at present are naturally rewarded and punished, not only as beneficial andmischievous to society, but also as virtuous and civious; ...
1892, Henry Sidgwick,Outlines of the History of Ethics:
On the whole, therefore, he concludes that the point of indulgence at which these self-passions or self-affections begin to bemischievous to the individual coincides with that at which they begin to be mischievous to society; ...
The spelling "misch(i)evious" and similar ones can be found since the 16th century, so the corresponding pronunciation is at least as old. But despite being common in a wide range of social classes today, these spellings and the corresponding pronunciation are still considered nonstandard and often viewed as incorrect.
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