gisarme

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gi·sarme

G0134500 (gĭ-zärm′)n. A halberd with a long shaft and two-sided blade, carried by medieval foot soldiers.
[Middle English, from Old French guisarme, possibly from Old High German getīsarn : getan, to weed + īsarn, iron; see eis- in Indo-European roots.]

gisarme

(ɡɪˈzɑːm) n (Arms & Armour (excluding Firearms)) a long-shafted battle-axe with a sharp point on the back of the axe head[C13: from Old French guisarme, probably from Old High German getīsarn weeding tool, from getan to weed + īsarn iron]