Planet from Planos
https://www.biblestudytools.com/lexicons/greek/nas/planos.html
Planos
Definition:
1 - wandering, roving
2 - misleading, leading into error
A - a vagabond, "tramp", imposter
B - corrupter, deceiver
1 Timothy 4:1
But the Spirit explicitly says that in later times some will fall away from the faith, paying attention to deceitful spirits and doctrines of demons,
2 John 1:7
For many deceivers have gone out into the world, those who do not acknowledge Jesus Christ as coming in the flesh. This is the deceiver and the antichrist.
https://www.blueletterbible.org/nasb20/1ti/4/1/t_conc_1123001
https://www.blueletterbible.org/lexicon/g4108/nasb20/mgnt/0-1/
Planet
https://www.merriam-webster.com/dictionary/planet#little-gems
Planet goes back to ancient Greek planēt- (literally, "wanderer"), which is derived from planasthai, a Greek verb which means "to wander."
https://en.wikipedia.org/wiki/Planet#History
Ancient Greeks called these lights πλάνητες ἀστέρες (planētes asteres, "wandering stars") or simply πλανῆται (planētai, "wanderers"), from which today's word "planet" was derived.
--Study put together by Russell Kanning