Modern Hebrew uses Sephardic pronunciation, not that of these European Jews, so "Shabbat" not "Shabbes"
[DOC] [TLE] Jerusalem - Mir Redden Yiddish in der Knesset - Vos Iz Neias [PAR] May 21, 2009 ... She is not the only MK to remember her childhood in shades of ... viewed as a 
Diaspora language, inappropriate for use in the newly ....