שעלטן
‘to curse, swear’
שעלטן
געשאָלטן
שילטן
'to curse, swear'
ETYMOLOGY
The form שילטן is an "irregular deformation" of שעלטן, from MHG schëlten 'to scold'.
{Herzog 1964: 96}
The idiom שעלטן אויף וואָס די וועלט שטייט 'to curse with all one's might' appears to be a calque of Polish kląć / przeklinać na czym świat stoi.

šiltn is characteristic for NORTHEASTERN.
WESTERN
Oyberland (West Transcarpathian)
šɛlʲt͡n {WTCP, Dunajská Streda, 47179}
šɛlt͡n̩ {מקלל זײַן, קללה} {WTCP, Vác, 47197}
- gəšɔltn̩ געשאָלטן
CENTRAL
Unterland (East Transcarpathian)
šɛlʲt {ETCP, Sîg Felső Szek, 47223}
šʲɛ́lʲtn̩ {POLAND, Wolbrom, 50196}
šeʎtn {POLAND, Warsaw, 52211}
HASIDIC
AMERICA
<שעלטן>
ISRAEL
gɛšɛlt zɔl zajn געשעלט זאָל זײַן [Bnei Brak, Eli Benedict (Karlin)]
NORTHEASTERN
Lithuania
šiltn {LITHUANIA, Vilnius, 54257}