wrest

Short definition from Wiktionary

Verb

1. 1
   To pull or twist violently.
2. 2
   To obtain by pulling or violent force.
3. 3
   To seize.
4. 4
   To distort, to pervert, to twist.
5. 5
   To tune with a wrest, or key.

Noun

1. 1
   The act of wresting; a wrench or twist; distortion.
2. 2
   A key to tune a stringed instrument.
3. 3
   Active or motive power.
4. 4
   Ellipsis of saw wrest (“a hand tool for setting the teeth of a saw, determining the width of the kerf”); a saw set.
5. 5
   A partition in a water wheel by which the form of the buckets is determined.
6. 6
   A metal (formerly wooden) piece of some ploughs attached under the mouldboard (the curved blade that turns over the furrow) for clearing out the furrow; the mouldboard itself.