> it's now coming to mean its opposite
As long as by "now" you mean, "over the last several hundred years":
My daily bread is literally implored
I have no barns nor granaries to hoard;
John Dryden, The Hind and The Panther (1687)
Every day with me is literally another yesterday for it is exactly the same.
Alexander Pope, Letter to H. Cromwell (March 1708)
His looks were very haggard, and his limbs and body literally worn to the bone
Charles Dickens, Nicholas Nickleby (1839)
If we were not perfectly convinced that Hamlet's Father died before the play began, there would be nothing more remarkable in his taking a stroll at night, in an easterly wind, upon his own ramparts, than there would be in any other middle-aged gentleman rashly turning out after dark in a breezy spot -- say Saint Paul's Churchyard for instance -- literally to astonish his son's weak mind.
Charles Dickens, A Christmas Carol (1843)
He is a fortunate man to be introduced to such a party of fine women at his arrival; it is literally to feed among the lilies.
Frances Brooke, The History of Emily Montague (1769)
I look upon it, Madam, to be one of the luckiest circumstances of my life, that I have this moment the honour of receiving your commands, and the satisfaction of confirming with my tongue, what my eyes perhaps have but too weakly expressed — that I am literally the humblest of your servants.
George Colman and David Garrick, The Clandestine Marriage (1766)
Lily, the caretaker's daughter, was literally run off her feet.
James Joyce, The Dead (1914)
that he had shared her bedroom which came out in the witnessbox on oath when a thrill went through the packed court literally electrifying everybody in the shape of witnesses swearing to having witnessed him on such and such a particular date in the act of scrambling out of an upstairs apartment with the a ssistance of a ladder in night apparel...
James Joyce, Ulysses (1922)
And when the middle of the afternoon came, from being a poor poverty-stricken boy in the morning, Tom wasliterally rolling in wealth.
Mark Twain, "The Adventure of Tom Sawyer" (1876)
All colors made me happy: even gray.
My eyes were such that literally they Took photographs.
Vladimir Nabokov, Pale Fire (1962)
Literally, I was (what he often called me) the apple of his eye
Charlotte Bronte, Jane Eyre (1847)