Where does “primary planet” come from?

primary planet (English) comes from English planet, from Middle English planete, from Old French planete, from Latin planēta, from Ancient Greek πλανήτης, from Ancient Greek -τής, from Ancient Greek πεῖρα, from Proto-Indo-European per- — passed , crossed.

primary planet (English): A planet; a natural satellite of a sun

Definitions

  1. A planet; a natural satellite of a sun

Ancestry of “primary planet”, step by step

primary planet traces back through two separate lines of ancestry.

via English planet

StepLanguageWordMeaning
1EnglishplanetEach of the seven major bodies which move...
2Middle EnglishplaneteEach of the seven celestial bodies which move...
3Old Frenchplaneteplanet
4Latinplanētaplanet (wandering star)
5Ancient Greekπλανήτηςwanderer, vagabond; planet; a fever that comes in...
6Ancient Greek-τήςAppended to verbs to form agent nouns
7Ancient Greekπεῖραtrial, experiment, attempt
8Proto-Indo-Europeanper-before, in front; first; to go through
9Proto-Indo-Europeanpr̥tóspassed , crossed

via English primary

StepLanguageWordMeaning
1Englishprimaryfirst or earliest in a group or series; main;...
2LatinprīmāriusOne of the first, of the first rank, chief, principal, excellent, remarkable. It was used as the title of a position in universities
3Latinprīmus
4Latinprīsmos
5Proto-Italicpriisemosforemost, first
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Ancient Greek -τής