Origin of one another
Examples from the Web for one another
But the film lags during long stretches—particularly in the middle, when Franco and Rogen are separated from one-another.Sony’s ‘The Interview’: A Glorious, Patriotic, and Katy Perry-Filled Mess|Marlow Stern|December 24, 2014|DAILY BEAST
Such is the case with our own language: each-other, one-another.Opuscula|Robert Gordon Latham
This afternoon, however, he found nothing to say, and they all looked at one-another in silence.Tommy Tregennis|Mary Elizabeth Phillips
British Dictionary definitions for one another
Idioms and Phrases with one another
see each other.