The Collaborative International Dictionary of English v.0.48:
Demarch \De*march\ (d[=e]"m[aum]rk), n. [Gr. dh`marchos; dh^mos people + 'a`rchein to rule.] A chief or ruler of a deme or district in Greece. [1913 Webster]The Collaborative International Dictionary of English v.0.48:
Demarch \De*march"\, n. [F. d['e]marche. See March, n.] March; walk; gait. [Obs.] [1913 Webster]