Likely from English lava, ultimately from Neapolitan lava.
לאַווע • (lave) f, plural לאַוועס (laves)
- lava
- Justus van de Kamp et al., “לאַווע” in Jiddisch-Nederlands Woordenboek [Yiddish-Dutch Dictionary], Amsterdam: Stichting Jiddische Lexicografie, 1987-present (ongoing). [1].