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Latin septem
← Old English seofon (cognate)
← Old Church Slavonic седмь (mention)
← English seven (mention)
← Ancient Greek ἑπτά (cognate)
← Proto-Indo-European *septḿ̥ (derived)
← Sanskrit सप्तन् (cognate)

→ English September (mention)
→ English seven (cognate)
→ English septet (derived)
→ English septic (mention)
→ English septua- (mention)
→ English septentrion (mention)
→ English septrional (mention)
→ English septrional (mention)
→ English septempartite (mention)
→ English septi- (mention)
→ English septuary (mention)
→ English septimole (mention)
→ English septuagenary (mention)
→ English septane (mention)
→ English septuplex (derived)
→ Aragonese semana (mention)
→ Aragonese siet (inherited)
→ Old English seofon (cognate)
→ Asturian siete (inherited)
→ Catalan set (inherited)
→ Catalan disset (mention)
→ Cebuano semana (mention)
→ Corsican sette (inherited)
→ German September (mention)
→ Dalmatian sapto (inherited)
→ Emilian sêt (inherited)
→ Esperanto sep (borrowed)
→ Spanish siete (inherited)
→ Persian هفت (cognate)
→ French sept (inherited)
→ French septidi (derived)
→ Old French set (inherited)
→ Friulian siet (inherited)
→ Galician sete (inherited)
→ Ancient Greek ἑπτά (cognate)
→ Indonesian September (mention)
→ Ido sep (derived)
→ Istriot siete (inherited)
→ Italian sette (inherited)
→ Judeo-Tat хьэфд (cognate)
→ Latin septimus (mention)
→ Latin september (mention)
→ Latin october (mention)
→ Latin december (mention)
→ Latin septingenti (mention)
→ Latin septendecim (mention)
→ Latin septentrio (compound)
→ Latin septies (affix)
→ Latin septeni (suffix)
→ Latin septangulus (compound)
→ Latin septiens (affix)
→ Latin septemvir (mention)
→ Latin septicollis (compound)
→ Latin septipes (affix)
→ Latin septuennis (mention)