a. Obs. or arch. [ad. L. exitiāl-is destructive, f. exitium: see prec.] Hurtful; destructive to life, deadly, fatal.
c. 1534. trans. Pol. Verg. Eng. Hist. (Camden), I. 123. These menn … had ynoughe to doe to … defer the exitiall fall of their contrie. Ibid., I. 177. The charge of regalitie … had benne hurtfull and exitiall to so manie his predecessors.
1607. Topsell, Serpents (1653), 749. The biting of it is very exitial and deadly.
1633. T. Adams, Exp. 2 Peter ii. 1. 382. They [heresies] are exitiall and pestilent to the kingdomes and nations where they are admitted.
1699. Evelyn, Acetaria (1729), 177. [Mushrooms are] malignant, exitial, mortal and deleterious.
1721–1800. in Bailey.
1884. in Syd. Soc. Lex.
