βούλαρχος
From LSJ
ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone
English (LSJ)
ὁ,
A president of the senate, as at Thyateira, IGRom.4.1230; at Amorgos, IG12(7).287, cf.Milet.3.230, 7.70. II adviser of a plan, A.Supp.11,970.