Where does “cathemeral” come from?

cathemeral (English) comes from English cata-, from Ancient Greek κᾰτᾰ-, from Ancient Greek κατά, from Ancient Greek καταστερίζω, from Ancient Greek ἀστήρ, from Proto-Hellenic astḗr, from Proto-Indo-European h₂stḗr, from Proto-Indo-European h₂eHs- — to be/become dry; to burn, to glow; hearth.

cathemeral (English): Relating to organisms' behaviour in which food is acquired at random intervals during the day or night

Definitions

  1. Relating to organisms' behaviour in which food is acquired at random intervals during the day or night

Ancestry of “cathemeral”, step by step

StepLanguageWordMeaning
1Englishcata-down; reverse, backward, degenerative
2Ancient Greekκᾰτᾰ-fully; down; denoting motion downwards
3Ancient Greekκατά
4Ancient Greekκαταστερίζωto place among the stars; I put among the stars
5Ancient Greekἀστήρa celestial body; illustrious person; starfish
6Proto-Hellenicastḗrstar
7Proto-Indo-Europeanh₂stḗrstar
8Proto-Indo-Europeanh₂eHs-to be/become dry; to burn, to glow; hearth
Every word from Proto-Indo-European h₂eHs-Every word from Proto-Indo-European h₂stḗrEvery word from Proto-Hellenic astḗr