Of the sun; lordly
Cylus is a modern spelling variant of the name Silas or Cyrus. If derived from Cyrus, it traces back to the Persian 'KΕ«rush', meaning 'sun' or 'young'. If linked to Silas, it stems from the Latin Silvanus, meaning 'of the forest'.
Less common today
Cylus isn't in the latest US Top 1000. It last peaked at #1,888 in 2012.
US births per 5-year period, 1990βpresent (SSA data).