Proto-Slavic *serda

→ Belarusian серада (inherited)

→ Bulgarian среда (inherited)

→ Bulgarian сряда (inherited)

→ Czech středa (inherited)

→ Kashubian strzoda (inherited)

→ Old Church Slavonic срѣда (inherited)

→ Lower Sorbian srjoda (inherited)

→ Lower Sorbian srjejź (mention)

→ Upper Sorbian srjeda (inherited)

→ Macedonian среда (inherited)

→ Polish środa (inherited)

→ Russian среда (derived)

→ Russian середа (inherited)

→ Yakut сэрэдэ (derived)

→ Serbo-Croatian среда (inherited)

→ Serbo-Croatian sreda (inherited)

→ Serbo-Croatian srijeda (inherited)

→ Serbo-Croatian сриједа (inherited)

→ Slovak streda (inherited)

→ Slovene sreda (inherited)

→ Ukrainian середа (inherited)