Meaning A boy's name of Native American origin, it means "Sioux name meaning big both ways." Origin of Eyanosa Native American Popular Middle Names Pronunciation 🔊 Listen Eyanosa Similar Names Anakausuen Buegoneguig Cashesegra Eluwilussit Akando Cha’tima Kajika Machk Matchitisiw Nahiossi Year by Year Popularity of Eyanosa