The two varieties differ slightly. Many words with /oj/ in the standard have /ej/ in Lithuanian Yiddish, e.g. וואוין = Standard /vojn/, Lithuanian /vejn/. See Katz, Dovid (1987). Grammar of the Yiddish Language. Gerald Duckworth & Co. Ltd. p. 38. ISBN0-7156-2161-0.
Quoted in: Jochnowitz, George (2010). "Western Yiddish in Orange County, New York State". jochnowitz.net. Retrieved 14 September 2017. Jochnowitz is a professor emeritus of linguistics at the College of Staten Island, City University of New York. "This article appeared in Les Cahiers du CREDYO. No. 5 (2010), published by the Centre de Recherche, d'Etudes et de Documentation du Yidich Occidental."
