Lithuanian širdis

← Proto-Balto-Slavic *śirˀdís (inherited)

← Proto-Indo-European *ḱḗr (inherited)

→ Old English heorte (cognate)

→ Scottish Gaelic cridhe (mention)

→ Old High German herza (cognate)

→ Latgalian sirds (cognate)

→ Albanian kërth (cognate)