ETYMOLOGY
from Latin mactat-, past participial stem of mactare (to slay, to honour with sacrifice)
EXAMPLE
“…As has been shown, it is historically true that a vulgar opinion to the effect that CHRIST was separately mactated in the sacrifices of masses prevailed at the time of the Reformation, which opinion being perfectly analogous to that which the Apostle combats, nothing could be more appropriate than to quote his teaching in condemnation of it…”
From: Answers for the Right Rev. Dr. Alexander Penrose Forbes,
Bishop of Brechin
To the Presentment Against Him
William Henderson, 1860
Lexicophilia 