συστρατηγέω

A. to be a fellow-general, D. 19.191, Plu. Per. 8.
II. trans., help in procuring, τῷ πατρὶ τὴν κάθοδον Str. 6.1.8.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project