jornâ

• jorna (Old Dauphinois)

Inherited from Vulgar Latin *diurnāta.

jornâ f (plural jornâs) (ORB, broad)

1. the span of a day

Not synchronically derivable from the related jorn (“day”) since the latter has only a silent ⟨n⟩.

• journée in DicoFranPro: Dictionnaire Français/Francoprovençal – on dicofranpro.llm.umontreal.ca
• jornâ in Lo trèsor Arpitan – on arpitan.eu

• ALF: Atlas Linguistique de la France^[1] [Linguistic Atlas of France] – map 731: “journée” – on lig-tdcge.imag.fr
• Walther von Wartburg (1928–2002) “diurnum”, in Französisches Etymologisches Wörterbuch, volumes 3: D–F, page 103