Of the forest
Silus is a variant of the Latin name Silas, which is likely a shortened form of Silvanus. It refers to someone who lives in or originates from the woods or forest. While the 'Silas' spelling is more common, this version offers a unique phonetic variation.
Less common today
Silus isn't in the latest US Top 1000. It last peaked at #4,969 in 2013.
US births per 5-year period, 1990βpresent (SSA data).