Where does “zetta-” come from?

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

zetta- (English): API; In the International System of Units and...

Definitions

  1. API; In the International System of Units and...

Ancestry of “zetta-”, step by step

zetta- traces back through two separate lines of ancestry.

via Ancient Greek ἑπτά

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

via Latin Septem

StepLanguageWordMeaning
1LatinSeptemseven; 7
2Proto-Italicseptemseven

Words derived from “zetta-

Every word from Proto-Indo-European septḿ̥Every word from Proto-Hellenic heptə́Every word from Ancient Greek ἑπτά