siffera is the neuter plural definite of siffer.

sifferN

North Sámi

siffarN; lohkomearkaN

Norsk-nordsamisk ordbokdict-nob-sme/src/N_nobsme.xml:13979Edit on GitHub Suggest

Case	Sg	Pl
Indef	siffer	siffer
Def	sifferet	siffera