Proto-Germanic *smertaną

→ English Schmerz (inherited(en/de))

→ English smart (inherited)

→ Old English smeortan (inherited)

→ Old English smeart (mention)

→ Danish smerte (derived)

→ German schmerzen (inherited)

→ Middle Dutch smerten (inherited)

→ Middle English smerten (inherited)

→ Ancient Greek ἀμέρδω (cognate)

→ Dutch smart (inherited)

→ Swedish smärta (derived)