euthanatize vs euthanise

euthanatize and euthanise both are verbs.

Word	Noun	Adjective	Verb	Adverb
euthanatize	No	No	Yes	No
euthanise	No	No	Yes	No

As verbs, euthanatize and euthanise are synonyms defined as:

euthanatize and euthanise: intentionally cause the painless death of a person or animal

Other synonyms of euthanatize include euthanatise, euthanize, mercy kill.

euthanatize (verb)	euthanise (verb)
intentionally cause the painless death of a person or animal	intentionally cause the painless death of a person or animal