Heroine or halo of light
Hailo is a modern phonetic variation of the word halo, referring to a circle of light. It may also be interpreted as a variant of the German name Haylo, meaning heroine. Its usage in the US is extremely rare, often chosen for its celestial associations and trendy 'o' ending.
Less common today
Hailo isn't in the latest US Top 1000. It last peaked at #6,888 in 2023.
US births per 5-year period, 1990βpresent (SSA data).