itzcuahuitl.

Headword: 
itzcuahuitl.
Principal English Translation: 

an Indigenous weapon, involving an obsidian-blade studded club akin to the macuahuitl

See the Gran Diccionario Náhuatl, citing A. Wimmer (2004), "L'épée indigène," the native sword, translated here to English by Stephanie Wood; https://gdn.iib.unam.mx/diccionario/itzcuahuitl/51378

Attestations from sources in English: 

See an image that represents itzcuahuitl in the Visual Lexicon of Aztec Hieroglyphs, ed. Stephanie Wood (Eugene, Ore.: Wired Humanities, 2020-present).

See also: 
macuahuitl.
Itzcuauhtzin.