eternize vs eternise

eternize and eternise both are verbs.

Word	Noun	Adjective	Verb	Adverb
eternize	No	No	Yes	No
eternise	No	No	Yes	No

As verbs, eternize and eternise are synonyms defined as:

Other synonyms of eternize include eternalise, eternalize, immortalise, immortalize.

eternize (verb)	eternise (verb)
make famous forever	make famous forever
cause to continue indefinitely