sieŋa is the singular accusative or singular genitive of siekŋa.

siekŋaN

Finnish

nenänsiivekeN; sierainN

Nordsamisk-finsk ordbokdict-sme-fin/src/n_smefin.xml:273059Edit on GitHub Suggest

siegŋaN

North Sámi – Lule Sámidict-sme-smj/src/all_smesmj.xml:45642Edit on GitHub Suggest