SILLA

sil'-a (cilla'; Codex Vaticanus Galla; Codex Alexandrinus Gaallad): Joash was assassinated by his servants "at the house of Millo, on the way that goeth down to Silla" (2 Kings 12:20). Wherever Beth-millo stood, Silla was evidently in the valley below it; but nothing is known of what it was or where it stood.

From the International Standard Bible Encyclopedia
Edited by James Orr, published in 1939 by Wm. B. Eerdmans Publishing Co.