to cause (something) to cease burning; to quench (a flame, fire, etc)
to put out (a light)
to bring (something) to an end; to destroy (a feeling) completely
to make (a claim, etc) void
to abolish (a debt) by payment
extinguishable adj
extinguisher noun
extinguishment noun
[Latin exstinguere (from ex-1 + stinguere to extinguish) + -ish as in abolish]