Where does “arachnoīdēs” come from?

arachnoīdēs (New Latin) comes from Ancient Greek ᾰ̓ρᾰχνοειδής, from Ancient Greek -ειδής, from Ancient Greek -ής, from Proto-Indo-European -ēs, from Proto-Indo-European -ess, from Proto-Indo-European -os — Creates action nouns or result nouns from verbs;...

Ancestry of “arachnoīdēs”, step by step

StepLanguageWordMeaning
1Ancient Greekᾰ̓ρᾰχνοειδήςlike a cobweb; cobwebby
2Ancient Greek-ειδήςlike, connected to, from the nature of, full of;...
3Ancient Greek-ήςadjective suffix
4Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
5Proto-Indo-European-ess
6Proto-Indo-European-osCreates action nouns or result nouns from verbs;...

Words derived from “arachnoīdēs

Every word from Proto-Indo-European -osEvery word from Ancient Greek -ειδήςEvery word from Ancient Greek -ής