n. An abbreviation of Wisconsin.Certain; sure: especially in the phrases to wisse, for certain, certainly; mid wisse, with certainty.Certainly; truly; indeed: same as iwis.A spurious word, arising from a misunderstanding of the Middle English adverb iwis, often written i-wis, and in Middle English manuscripts i wis, I wis, whence it has been taken as the pronoun I with a verb wis, vaguely regarded as connected with wit (which has a preterit wist). See iwis, and, for the real verb, see wit.