Meaning A girl's name of Latin origin, it means "Serious; determined Feminine of Emest." Origin of Ernestine Latin Popular Middle Names Abena Pronunciation 🔊 Listen Ernestine Similar Names Ernestina Ermyntrude Earna Guillelmina Agrippinae Okelani Adrienna Claribelle Septima Sheelagh Year by Year Popularity of Ernestine