Wiktionary
euthanatize
vb. (context transitive English) To euthanize.
Usage examples of "euthanatize".
I rubbed her back and told her that I would have to euthanatize the doe, but if its baby could be saved, there would be a lot of work to do.
Then I clamped off the cord, filled a syringe, and euthanatized the doe.