Certainly; most likely; truly; probably. [
1913 Webster]
" The common form iwis was often written with the prefix apart from the rest of the word and capitalized, as, I wis, I wisse, etc. The prefix was mistaken for the pronoun, I and wis, wisse, for a form of the verb wit to know. See Wis, and cf. Wit, to know."
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"“Ywis,” quod he, “it is full dear, I say.”"
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"She answered me, “I-wisse, all their sport in the park is but a shadow to that pleasure that I find in Plato.”"
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"A right good knight, and true of word ywis."
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"Our ship, I wis,
Shall be of another form than this."
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