egoismmas is the singular locative of egoisma.

egoismaN

Finnish

itsekkyysN

Nordsamisk-finsk ordbokdict-sme-fin/src/n_smefin.xml:164082Edit on GitHub Suggest

egoissmaN

North Sámi – Lule Sámidict-sme-smj/src/all_smesmj.xml:22252Edit on GitHub Suggest