sentimentalization vs sentimentalisation

sentimentalization and sentimentalisation both are nouns.

Word	Noun	Adjective	Verb	Adverb
sentimentalization	Yes	No	No	No
sentimentalisation	Yes	No	No	No

As nouns, sentimentalization and sentimentalisation are synonyms defined as:

sentimentalization and sentimentalisation: the act of indulging in sentiment

Other synonyms of sentimentalization include romanticisation, romanticization.

sentimentalization (noun)	sentimentalisation (noun)
the act of indulging in sentiment	the act of indulging in sentiment