προσναυπηγέω

A. build in addition:—Pass., ἑτέρας [νέας] . . ἔδεε ‐ναυπηγέεσθαι Hdt. 7.144:—Med., D.S. 17.95.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project