“You kids straddle your cayuses and hit for home,” Tom interrupted them.
They were wild, unbroken "cayuses," and had to be broken then and there.
“Snoqualmie, chief of the Cayuses,” faltered her tremulous lips.
I buried her that night beneath a heap of stones, and fled to the Cayuses.
But it could not cope with the fresh horses of the Cayuses, and they gained steadily.