Irritancy

n.	1.	(Scots Law) The state or quality of being null and void; invalidity; forfeiture.
	1.	The state or quality of being irritant or irritating.

IRRITANCY. In Scotland, it is the happening of a condition or event by which a charter, contract or other deed, to which a clause irritant is annexed, becomes void. Ersk. Inst. B. 2, t. 5, n. 25. Irritancy is a kind of forfeiture. It is legal or conventional. Burt. Man. P. R. 29 8.