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Wis vs Cis - What's the difference?

wis | cis |

As adjectives the difference between wis and cis

is that wis is certain while cis is having two mutations on two genes on the same chromosome of a homologous pair.

As an adverb wis

is certainly, surely.

As a verb wis

is to know.

As an initialism CIS is

commonwealth of Independent States.



Alternative forms

* wiss, ywis, iwis

Etymology 1

From (etyl) . More at ywis.


(en adverb)
  • (rare, obsolete, or, dialectal) Certainly, surely
  • * 1884 , Charlotte Mary Yonge, The armourer's prentices :
  • So I wis would the Dragon under him [...]
  • (rare, obsolete, or, dialectal) Really, truly
  • (rare, obsolete, or, dialectal) Indeed
  • "As wis God helpe me." --Chaucer.


    (en adjective)
  • (rare, obsolete, or, dialectal) Certain
  • (rare, obsolete, or, dialectal) Sure
  • He was wis on his word
    Derived terms
    * (l)

    Etymology 2

    From an incorrect division, mistaking . See ywis for more information. The German verb wissen'' appears similar, but in fact corresponds etymologically to the English verb ''wit ; both of those verbs are only indirectly related to this one.


  • (obsolete, or, archaic) To know.
  • (obsolete, or, archaic) To think, suppose.
  • "Howe'er you wis ." --R. Browning.
  • (obsolete, or, archaic) To imagine, ween; to deem.
  • Nor do I know how long it is (For I have lain entranced, I wis ). --Coleridge.




  • The function \mathrm{cis}(x)=\cos x+i\sin x.
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