Samantha at Saratoga: Or Flirtin' with Fashion (1887)

But the thought kep a naggin' me stiddy, and then -- here is the curious part of it -- the thought nagged me, and I nagged Josiah, or not exactly nagged; not a clear nag; I despise them, and always did. But I kinder kep' it before his mind from day to day, and from hour to hour. And the idee would keep a tellin' me things and I would keep a tellin' 'em to my companion.