Singing or stone
A modern American coinage likely blending the French 'chanter' (to sing) with the suffix '-ia', or a variation of Chantal. Chantal itself originates from a French surname referring to a stony place.
Less common today
Chantia isn't in the latest US Top 1000. It last peaked at #4,208 in 1993.
US births per 5-year period, 1990βpresent (SSA data).