Rival, laborious, or eager
Amillio is a rare phonetic variant of Emilio or Amelio. It likely stems from the Roman family name Aemilius, meaning 'rival', or the Germanic element 'amal', meaning 'work' or 'labor'.
Less common today
Amillio isn't in the latest US Top 1000. It last peaked at #7,399 in 2020.
US births per 5-year period, 1990βpresent (SSA data).