enthronement vs enthronization

enthronement and enthronization both are nouns.

Word	Noun	Adjective	Verb	Adverb
enthronement	Yes	No	No	No
enthronization	Yes	No	No	No

As nouns, enthronement and enthronization are synonyms defined as:

enthronement and enthronization: the ceremony of installing a new monarch

Other synonyms of enthronement include coronation, enthronisation, investiture.

enthronement (noun)	enthronization (noun)
the ceremony of installing a new monarch	the ceremony of installing a new monarch