QUITCH
Etymology 1
Verb
quitch (third-person singular simple present quitches, present participle quitching, simple past and past participle quitched)
(transitive, obsolete) To shake (something); to stir, move. [8th-13th c.]
(intransitive, now UK, regional) To stir; to move. [from 13th c.]
(intransitive) To flinch; shrink.
Etymology 2
Noun
quitch (uncountable)
Elymus repens, couch grass (a species of grass, often considered a weed)
Source: Wiktionary
Quitch, n.
1. (Bot.)
Definition: Same as Quitch grass.
2. Figuratively: A vice; a taint; an evil.
To pick the vicious quitch Of blood and custom wholly out of him.
Tennyson
.
Source: Webster’s Unabridged Dictionary 1913 Edition