At once. Provincial.

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1848.  

        She heered a foot, an’ knowed it tu,
  A-raspin’ on the scraper,—
All ways to once her feelins flew
  Like sparks in burnt-up paper.
Lowell, ‘The Courtin’.’    

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1859.  She was good-lookin’, and I kind o’ liked her from the very fust: I reckon she did me, too, but not to-once, I expect.—Knick. Mag., liii. 206 (Feb.).

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