Where does “anthesis” come from?

anthesis (English) comes from Ancient Greek ἄνθησις, from Ancient Greek ἀνθέω, from Ancient Greek ἄνθος, from Proto-Hellenic ántʰos, from Proto-Indo-European h₂éndʰos, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

anthesis (English): The event of a flower opening

Definitions

The event of a flower opening

Ancestry of “anthesis”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἄνθησις	—
2	Ancient Greek	ἀνθέω	to flower, blossom
3	Ancient Greek	ἄνθος	flower, blossom, bloom; froth, scum; bloom, peak
4	Proto-Hellenic	ántʰos	flower, blossom
5	Proto-Indo-European	h₂éndʰos	bloom
6	Proto-Indo-European	-os	Creates action nouns or result nouns from verbs;...

Words derived from “anthesis”

postanthesis
preanthesis
synanthesis
isanthesic
antesis

Every word from Proto-Indo-European -os →Every word from Proto-Indo-European h₂éndʰos →Every word from Proto-Hellenic ántʰos →