The Collaborative International Dictionary
boroughhead
Headborough \Head"bor*ough\ Headborrow \Head"bor*row\(h[e^]d"b[u^]r*[-o]), n.
The chief of a frankpledge, tithing, or decennary, consisting of ten families; -- called also borsholder, boroughhead, boroughholder, and sometimes tithingman. See Borsholder. [Eng.]
--Blackstone.(Modern Law) A petty constable. [Eng.]
Wiktionary
boroughhead
n. (context obsolete English) A headborough.