באָך
־ן
דער
'stream'

ETYMOLOGY

{Why was the MHG short /a/ (in a closed syllable) shifted to /o/ in Eastern Yiddish? No sign of /o/ in MHG or ENHG.}
ON bekkr, OE bece, bæc(e), OS beki, OHG bah, MHG bach, NHG Bach; from PGmc ✱bakja- 'creek' <PIE ✱bʰog-io-; cf. Russian багно 'swamp', Ukrainian багно 'marsh, mud'
Gender in German was originally mainly masculine, as in Yiddish; later often shifted to feminine.

WESTERN

Alsace (France)

baɣ- {ALSACE, 47075 Mulhouse, 004-010}
- bɛçlə בעכלע {q004-010}

Czechia

būɐx {CZECHIA, Beranek 1936: 66}

Falln se erein in Boch פֿאַלן זיי אַרײַן אין באָך {BURGENLAND, Stalek 1926: 270}