arra is the neuter plural definite of arr.

arrN

Kven

arpiN

Norwegian Bokmål – Kvendict-nob-fkv/src/N_nobfkv.xml:19147Edit on GitHub Suggest

árpaN; udduN; hávvesadjiN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:33211Edit on GitHub Suggest

Case	Sg	Pl
Indef	arr	arr
Def	arret	arra