Where does “Mussolinian” come from?

Mussolinian (English) comes from English ān, from Middle English ān, from Old English ān, from Proto-West Germanic ain, from Proto-Germanic ainaz, from Proto-Indo-European óynos — one; single.

Mussolinian (English): Of or relating to Benito Mussolini (1883–1945), Italian politician, journalist and leader of the National Fascist Party, ruling the country as Prime Minister from 1922 until his ousting in 1943

Definitions

  1. Of or relating to Benito Mussolini (1883–1945), Italian politician, journalist and leader of the National Fascist Party, ruling the country as Prime Minister from 1922 until his ousting in 1943

Ancestry of “Mussolinian”, step by step

Mussolinian traces back through two separate lines of ancestry.

via English ān

StepLanguageWordMeaning
1Englishān
2Middle Englishāna, an indefinite article
3Old Englishānlonely; entirely alone, solitary, single; one
4Proto-West Germanicainone
5Proto-Germanicainazone; some
6Proto-Indo-Europeanóynosone; single

via English Mussolini

StepLanguageWordMeaning
1EnglishMussoliniOf or pertaining to Benito Mussolini
Every word from Proto-Indo-European óynosEvery word from Proto-Germanic ainazEvery word from Proto-West Germanic ain