πλανήτης
planḗtēs
“wanderer”
6 words in English grow from this root.
Exoplanet
Earthἔξωéxō
“wanderer outside”
Planet
Everydayπλανήτηςplanḗtēs
“wandering star”
Planetarium
Earthπλανήτηςplanḗtēs
“place of the wanderers”
Planetesimal
Earthπλανήτηςplanḗtēs
“an infinitesimal planet”
Planetoid
Earthπλανήτηςplanḗtēs
“wanderer-shaped thing”
Protoplanet
Earthπρῶτοςprôtos
“first planet”