Where does “ἑπτήρης” come from?

ἑπτήρης (Ancient Greek) comes from Ancient Greek ἑπτά, from Proto-Hellenic heptə́, from Proto-Indo-European septḿ̥ — seven.

Ancestry of “ἑπτήρης”, step by step

ἑπτήρης traces back through two separate lines of ancestry.

via Ancient Greek ἑπτά

StepLanguageWordMeaning
1Ancient Greekἑπτάseven
2Proto-Hellenicheptə́seven
3Proto-Indo-Europeanseptḿ̥seven

via Ancient Greek ἐρέτης

StepLanguageWordMeaning
1Ancient Greekἐρέτηςrower
Every word from Proto-Indo-European septḿ̥ →Every word from Proto-Hellenic heptə́ →Every word from Ancient Greek ἑπτά →