SILAS seems to be fairly popular in the States, so I think it’s worth giving an alternative explanation to what this site says.
In the Epistles he is called by his
Roman name
SILVANUS. But I don’t believe,
SILAS is a short form of this. I think the two are rather like
PAUL und
SAUL: a
Roman name and a Semitic name that sound alike in some way or other, but are not related.
All my biblical dictionaries agree on the following derivation of
SILAS:
It is the Greek version of the Aramaic name SHE’ILAH (shin-aleph-yod-lamed-aleph). This again is a variant of the Hebrew SHA’UL (
Saul).
The probably most reliable proof for this is:
D. Dr. phil. h.c.
Walter Bauer: Griechisch-deutsches Wörterbuch zu den Schriften des Neuen Testaments und der übrigen urchristlichen Literatur, (
Walter de Gruyter)
Berlin, New
York 1971