Proper noun
Moselle Franconian
One of two subgroups of the Central Franconian dialects; spoken in the north-western half of Rhineland-Palatinate, the Siegerland, and parts of eastern Belgium; distinguished from the northern Ripuarian by a number of fairly parallel isoglosses, of which the Moselle Franconian diphthongization of Germanic -ī-, -ū- is the most important.
For those Germans familiar with Moselle Franconian dialects, it is relatively easy to understand and speak Luxembourgish as far as the everyday vocabulary is concerned. Source: Internet
Moselle Franconian dialects outside the Luxembourg state border tend to have far fewer French loan words, and these mostly remain from the French Revolution. Source: Internet
Spoken Luxembourgish is relatively hard to understand for speakers of German who are generally not familiar with Moselle Franconian dialects (or at least other West Central German dialects). Source: Internet