Entry from British & World English dictionary
Definition of wis in English:
verb (wisses, wissing, wissed)[no object] archaic
early 16th century: originally in I wis, alteration of the obsolete adverb iwis 'certainly', erroneously interpreted as 'I know' (associated with wist, past tense of wit2).
Definition of wis in:
- British & World English dictionary
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