Board Thread:Episode Discussion/@comment-30530552-20180116183349/@comment-26397825-20180117040828

Exinguish is literally a synonym for kill though.

The second meaning of extinguish according to Google Dictionary, and a list of synonyms:

put an end to; destroy.

"hope is extinguished little by little"

synonyms:	destroy, end, finish off, put an end to, put a stop to, bring to an end, terminate, remove, annihilate, wipe out, wipe off the face of the earth, wipe off the map, erase, eliminate, eradicate, obliterate, liquidate, expunge, abolish, exterminate, kill, extirpate, obscure, suppress, disrupt, undo, upset