Synonym (also jongin) for the grape variety Mondeuse Blanche; see there.
The white grape variety comes from France. Synonyms are Aigre Blanc, Blanc Aigre, Blanchette, Couilleri, Dongine, Jongin, Jonvin, Molette and Savouette. It must not be confused with the varieties Molette (Mondeuse Blanche), Roussette d'Ayze or Verdesse (Dongine), despite the fact that synonyms or morphological similarities seem to indicate this....
Serious sources on the internet are rare - and Wine lexicon from wein.plus is one such source. When researching for my articles, I regularly consult the wein.plus encyclopaedia. There I get reliable and detailed information.
Thomas Götz
Weinberater, Weinblogger und Journalist; Schwendi