Heáh-ealdorman

According to the Old English Dictionary:

heáh-ealdorman

gen. -mannes; m. A chief alderman, ruler, patrician :-- Ætius mǽre man se wæs iú ǽr heáhealdorman Ætius vir inlustris qui et patricius fuit, Bd. 1, 13; S. 481, 40. Ðe hǽlend cwæþ tó ðæm héhaldurmenn ihesus ait archesynagogo, Mk. Skt. Rush. 5, 36. Héhaldormenn patricius, Rtl. 193, 5. heah-ealdorman