Where does “πτῆσις” come from?

πτῆσις (Ancient Greek) comes from Ancient Greek πέτομαι, from Proto-Indo-European péth₂eti, from Proto-Indo-European peth₂- — to spread out; to fly.

πτῆσις (Ancient Greek): a flying, flight

Definitions

  1. a flying, flight

Ancestry of “πτῆσις”, step by step

StepLanguageWordMeaning
1Ancient GreekπέτομαιI fly; I dart, rush; I make haste
2Proto-Indo-Europeanpéth₂etito fly
3Proto-Indo-Europeanpeth₂-to spread out; to fly
Every word from Proto-Indo-European peth₂- →Every word from Proto-Indo-European péth₂eti →Every word from Ancient Greek πέτομαι →