Where does “Manicheanism” come from?

Manicheanism (English) comes from English Manichean, from English Manichaean, from English -an, from Italian -ana, from Spanish -ana, from Latin -ana, from Latin -anus, from Latin -um.

Ancestry of “Manicheanism”, step by step

StepLanguageWordMeaning
1EnglishManicheanAlternative form of Manichaean
2EnglishManichaeanA follower of Manichaeism; Of or relating to...
3English-anOf or pertaining to;
4Italian-ana-an, -y
5Spanish-anafeminine singular of -ano
6Latin-anainflection of -ānus: ## nominative/vocative...
7Latin-anusOf or pertaining to; -ian
8Latin-umnominative neuter singular of -us; accusative...
9Proto-Italic*-om
10Proto-Indo-European*-oHom
Every word from Proto-Indo-European *-oHomEvery word from Latin -anaEvery word from English -an