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Proto-Indo-European *septḿ̥

→ English September (derived)
→ English seven (inherited)
→ Avestan 𐬵𐬀𐬞𐬙𐬀 (inherited)
→ Avestan 𐬵𐬀𐬞𐬙𐬀𐬚𐬀 (mention)
→ Afrikaans sewe (derived)
→ Assamese সাত (inherited)
→ Belarusian сем (derived)
→ Bulgarian седем (inherited)
→ Bengali সাত (derived)
→ Breton seizh (inherited)
→ Catalan set (inherited)
→ Cebuano semana (derived(ceb/an))
→ Cebuano semana (derived)
→ Central Kurdish حەوت (inherited)
→ Corsican sette (inherited)
→ Czech sedm (derived)
→ Kashubian sétmë (inherited)
→ Old Church Slavonic седмь (derived)
→ Welsh saith (inherited)
→ Danish syv (inherited)
→ German sieben (mention)
→ Lower Sorbian sedym (inherited)
→ Emilian sêt (inherited)
→ Greek επτά (inherited)
→ Spanish siete (inherited)
→ Persian هفت (inherited)
→ Faroese sjey (derived)
→ French sept (inherited)
→ West Frisian sân (inherited)
→ Irish seacht (inherited)
→ Scottish Gaelic seachd (inherited)
→ Old Swedish siu (derived)
→ Central Franconian sibbe (inherited)
→ Gothic 𐍃𐌹𐌱𐌿𐌽 (derived)
→ Ancient Greek ἑπτά (inherited)
→ Gujarati સાત (derived)
→ Manx shiaght (inherited)
→ Hindi सात (inherited)
→ Upper Sorbian sydom (inherited)
→ Hungarian hét (mention)
→ Indonesian September (derived)
→ Ido sep (derived)