Where does “petameter” come from?

petameter (English) comes from English meter, from French mètre, from Latin metrum, from Ancient Greek μέτρον, from Ancient Greek -τρον, from Proto-Hellenic -tron, from Proto-Indo-European -trom, from Proto-Indo-European -tḗr — Derives agent nouns from verbs, denoting someone...

petameter (English): An SI unit of length equal to 1015 meters;...

Definitions

  1. An SI unit of length equal to 1015 meters;...

Ancestry of “petameter”, step by step

petameter traces back through two separate lines of ancestry.

via English meter

StepLanguageWordMeaning
1EnglishmeterA device that measures things; A parking meter or...
2Frenchmètremetre/meter; first-person singular present...
3Latinmetruma measure
4Ancient Greekμέτρονsomething used to measure: measure, rule, weight;...
5Ancient Greek-τρονForms instrument nouns
6Proto-Hellenic-tronForms instrument nouns from verb stems
7Proto-Indo-European-tromForms nouns denoting a tool or instrument
8Proto-Indo-European-tḗrDerives agent nouns from verbs, denoting someone...

via Dutch meter

StepLanguageWordMeaning
1Dutchmetermeasurer; meter; meter, metre
2Middle Dutchmeter
3Middle Dutchmetrijn
4Latinmatrīnagodmother
5Latin-īnusof or pertaining to; -ine
6Proto-Italic-īnosof/belonging to
7Proto-Indo-European-iHnosCreates adjectives of materials
8Proto-Indo-European-no-adjectival suffix
Every word from Proto-Indo-European -tḗr
petameter — Etymology, Origin & Word History | Etymology Explorer