Wikipedia
The Rhomphaia was a close-combat bladed weapon used by the Thracians as early as 400 BC. Rhomphaias were polearms with a straight or slightly curved single-edged blade attached to a pole, which in most cases was considerably shorter than the blade. Although the rhomphaia was similar to the falx, most archaeological evidence suggests that rhomphaias were forged with straight or slightly curved blades, presumably to enable their use as both a thrusting and slashing weapon. The blade was constructed of iron and used a triangular cross section to accommodate the single cutting edge with a tang of rectangular cross section. Length varied, but a typical rhomphaia would have a blade of approximately 60–80 cm and a tang of approximately 50 cm. From the length of the tang, it can be presumed that, when attached to the hilt, this portion of the weapon would be of similar length to the blade.