Ludian
From User talk:Rua
I noticed that Ludian (langcode lud) is the last Finnic language variety that we don't have language data for. Would you mind updating Module:languages/data3/l? "Ludian" seems to be preferred synonym by the the Ludian Society, so we should probably use that as well. Other names used in English include "Lude" and "Ludic".
(Whether it should be treated independently might be worth discussion at some point though. I am aware of no unique defining features of Ludian; it's essentially a group of transitional dialects between Veps and Karelian.)