Youthful or downy-bearded
A creative spelling of Jillian, which is the English feminine form of Julian. It ultimately derives from the Roman family name Julius, associated with the god Jupiter and signifying youthfulness.
Less common today
Jylian isn't in the latest US Top 1000. It last peaked at #9,685 in 1998.
US births per 5-year period, 1990–present (SSA data).
