Please see
https://web.prm.ox.ac.uk/weapons/ind...-31/index.html where it states the parts of the Takouba Sword are named after parts of the human body.
QUOTE"The different features of the takouba are named after parts of the human body. The conical brass button on the pommel is known as the 'bare head'; the narrow grip of the hilt is the 'spine'; the small guard, the 'shoulders' and the flat of the blade, the 'back'. The double cutting edge is known as 'that which devours' (i.e. the mouth), and the tip is refereed to as the 'tongue'.UNQUOTE."
Peter Hudson.