Aramaic
Interjection
וי • (transliteration needed)
-  woe!, alas!
References
-  “wy”, in The Comprehensive Aramaic Lexicon Project, Cincinnati: Hebrew Union College, 1986–
-  Jastrow, Marcus (1903) A Dictionary of the Targumim, the Talmud Babli and Yerushalmi, and the Midrashic Literature, London, New York: Luzac & Co., G.P. Putnam's Sons
-  Payne Smith, Jessie (1903) A Compendious Syriac Dictionary Founded Upon the Thesaurus Syriacus of R. Payne Smith, D.D., Oxford: Clarendon Press
 
Yiddish
Letter
וי • (oy)
-  A letter of the Yiddish alphabet, representing /ɔɪ̯/ in Standard YIVO Yiddish