Ilicia is of Latin origin, meaning 'liberty'. It is a variant spelling of the more common Ilaria, which also means 'cheerful'. The name gained popularity in the 20th century, particularly among families looking for unique and distinctive names for their daughters.
"Ilicia appears to have had consistently low birth rates over the decades, with only five babies named Ilicia born annually on seven occasions between 1971 and 2005. This totals forty children given this name during those years."