προέγγονος

A. great-grandson, CIG 4380b1.7(Cibyra), Ephes. 3.17, Just. Nov. 18.4 Intr.: also fem. προδρομ‐εγγόνη, great-granddaughter, Cod. Just. 6.48.1.12.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project