Webster's Revised Unabridged Dictionary · 1913

Onomasticon

Onomasticon , noun

[New Latin, from Greek {not transcribed} (sc.{not transcribed}), from {not transcribed}. See Onomastic.]

A collection of names and terms; a dictionary; specif., a collection of Greek names, with explanatory notes, made by Julius Pollux about a. d. 180.