from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A species of grass, often considered as a weed.
- v. To shake; stir; move.
- v. To stir; move.
- v. To flinch; shrink.
from the GNU version of the Collaborative International Dictionary of English
- n. Same as quitch grass.
- n. Figuratively: A vice; a taint; an evil.
from The Century Dictionary and Cyclopedia
- To shake; stir; move.
- To stir; move.
- To flinch; shrink.
- n. Same as quitch-grass.
Isch. And if a gang of men set to, to break and make this fallow with the mattock, it is transparent that their business is to separate the quitch grass from the soil and keep them parted?
Just so! — to throw the quitch grass down to wither on the surface, and to turn the soil up, so that the crude earth may have its turn of baking.
The buoyant sound of the brass was seen as quitch, an artifact from the distant past.
Both grace and will to pick the vicious quitch 
All the things his father, old Kla-quitch, the medicine-man, used to do were nothing to this.
Well, he would go on: probably the well-remembered name of Kla-quitch would make it all right.
He would avoid surprising any stragglers at the next village, and would get into touch with the head men, explaining that he was the long-lost son of Kla-quitch, who had escaped after all these years from the Mission, and had come back, learned in all the knowledge of the white men and armed further with this most wonderful appliance of magic, to take his place as hereditary medicine-man of his tribe.
What was Kla-quitch, with his painted sticks and bones, compared with him, if only he were the possessor of this marvel!
He could hear the people calling to one another from their spots of refuge, and ever the burden of the shout was either "Kla-quitch!" or "Yellow!"
Kla-quitch (who, it was naturally supposed, had appeared and announced his return from the spirit world); but it was far from being what his son and intending successor had hoped.