lexicalize vs lexicalise

lexicalize and lexicalise both are verbs.

Word	Noun	Adjective	Verb	Adverb
lexicalize	No	No	Yes	No
lexicalise	No	No	Yes	No

As verbs, lexicalize and lexicalise are synonyms defined as:

lexicalize and lexicalise: make or coin into a word or accept a new word into the lexicon of a language

lexicalize (verb)	lexicalise (verb)
make or coin into a word or accept a new word into the lexicon of a language	make or coin into a word or accept a new word into the lexicon of a language