ex·tin·guish vt
1: to cause the nonexistence of: do away with
2: to cause (as a claim or right) to be void: nullify
3: to get rid of (a debt or other liability) by payment or other compensatory adjustment
ex·tin·guish·able adj
ex·tin·guish·ment n
Merriam-Webster’s Dictionary of Law. Merriam-Webster. 1996.