Makhaira

The makhaira is a type of Ancient Greek bladed weapon and tool, generally a large knife or sword, similar in appearance to the modern day machete, with a single cutting edge.

The Greek word μάχαιρα (mákhaira, plural mákhairai), also transliterated machaira or machaera, is related to μάχη (mákhē) "a battle", μάχεσθαι (mákhesthai) "to fight".

[2] The Koine of the New Testament uses the word makhaira to refer to a sword generically, not making any particular distinction between native blades and the gladius of the Roman soldier.

The makhaira depicted in artworks was single-edged, having an expanded convex portion to the cutting part of the blade towards its tip.

Greek art along with Xenophon's further commentary suggests that the sword he intended for the cavalry was wider than the more modern sabre; more akin to the falchion or even machete.

Reconstructions of Mycenaean swords, the bottom one a makhaira-type sword.
Antique swords, fig. 1-3: Xiphos , fig. 4: Makhaira .
The figure on the right is wielding a makhaira - indicated by its asymmetric guard and pommel and the curve of the cutting edge (uppermost in the image) of the blade whilst the back of the blade is flat. Attic figured pelike c. 460BC.
A man wielding a makhaira. Red figure amphora c. 460 BC