Where does “antiplanet” come from?

antiplanet (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.

antiplanet (English): A hypothetical planet composed of antimatter

Definitions

  1. A hypothetical planet composed of antimatter

Ancestry of “antiplanet”, step by step

antiplanet 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 anti

StepLanguageWordMeaning
1EnglishantiOpposed to something; That has a torsion angle...
2Englishanti-Against, hostile to; Contrasting with the norm;...
3Ancient Greekἀντι-anti-, against; like, reminiscent of
4Ancient Greekᾰ̓ντῐ́opposite
Every word from Proto-Indo-European pr̥tósEvery word from Proto-Indo-European per-Every word from Ancient Greek -τής