Of or pertaining to a carnifex or executioner, or a butcher.
The Century Dictionary (Public Domain)
Use "carnificial" in a sentence
"He was happy enough to seize the opportunity to relieve himself and handed over his wide-bladed carnificial sword (which I in theory was not supposed to touch) and his fuligin cloak (which I was forbidden to wear, though I was already taller than most of the journeymen) so that from a distance it would appear that there had been no substitution."
"See my poor dexter, abridged to one thumb, one finger, and a stump, -- by the blow of my adversary's weapon, however, and not by any carnificial knife."
"See my poor dexter, abridged to one thumb, one finger, and a stump, — by the blow of my adversary’s weapon, however, and not by any carnificial knife."