Where does “Sintoism” come from?

Sintoism (English) comes from French shintoïsme, from French Shinto, from Japanese 神道, from Spanish -ismo, from French féminisme, from French -ïsme, from Latin -isma, from Latin -ismus — Creates action/result nouns from verb stems.

Ancestry of “Sintoism”, step by step

Sintoism traces back through 3 separate lines of ancestry.

via French shintoïsme

Step	Language	Word	Meaning
1	French	shintoïsme	Shinto, Shintoism
2	French	Shinto	Shinto
3	Japanese	神道	Shintō, a religion indigenous to Japan that...
4	Spanish	-ismo	-ism
5	French	féminisme	feminism
6	French	-ïsme	-ism, variant of -isme following vowels
7	Latin	-isma	Alternative form of -ismus; -ism
8	Latin	-ismus	-ism
9	Ancient Greek	-ισμός	Forms abstract nouns
10	Ancient Greek	-μός	Forms abstract nouns
11	Proto-Indo-European	-mós	Creates action/result nouns from verb stems

via English ism

Step	Language	Word	Meaning
1	English	ism	An ideology, system of thought, or practice that...
2	English	-ism	Used to form nouns of action or process or result...

via English Sinto

Step	Language	Word	Meaning
1	English	Sinto	A member of a Romani people found in Germany and...

Every word from Proto-Indo-European -mós →Every word from French -ïsme →Every word from Spanish -ismo →