fastlandsisen is the masculine singular definite of fastlandsis.

fastlandsisN

North Sámi

nannánjiehkkiN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:702Edit on GitHub Suggest

Case	Sg	Pl
Indef	fastlandsis	fastlandsiser
Def	fastlandsisen	fastlandsisene