if there is a stress on the ending e, it could be a french word but i don't know it
i have checked it on vocabulary, but nothing
i also have checked "irrize" on english dictionary, but nothing
if there is not the stress, the word is italian
it comes from irridere
irriso is the past participle of this verb which means "to deride"
irrise is the femminine form of this past participle (italian words can be masculine or femminine, adjectives and past participle change the ending depending on the gender of the word)