[fernando]

Hi Chris,

Originally Posted by Chris Evans

Hi Fernando,

Many thanks for that explanation.

Domenech is of the opinion that the word facon came into usage when Brazilian gauchos came into contact with those of what nowadays is Uruguay, who were armed with very large knives and referred to these as facao, pronounced as facaun and the Gauchos Hispanizied it to facon.
Cheers
Chris

So it all fits.
BTW the sound is more like facaum.
Regards
fernando