[hnuser123456]

Apparently, workers on the Gemini space program pronounced it "Jeh-mih-nee" back then. https://en.wikipedia.org/wiki/Project_Gemini#Pronunciation

[jpfromlondon]

the soft g is triggering, I can hear my classics tutor yelling even 20+ years later, don't get me started on the american pronunciation of hegemony!