D defs.my
Entry 2 senses · 2 variants Webster, 1913

Wis

/wĭs/ · IPA /waɪs/
01 adv. Certainly; really; indeed.
  1. 1.
    Certainly; really; indeed.[Obs.]
02 v. t. To think; to suppose; to imagine; -- used chiefly in the first person sing. present tense, I wis. See the Note under Ywis.
  1. 1.
    To think; to suppose; to imagine; -- used chiefly in the first person sing. present tense, I wis. See the Note under Ywis.[Obs. or Poetic] See: Ywis
    “Nor do I know how long it is (For I have lain entranced, I wis).” Coleridge.