Where does “Arachnē” come from?

Arachnē (Latin) comes from Ancient Greek ἀράχνη — spider; a spider's web.

Ancestry of “Arachnē”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ἀράχνη	spider; a spider's web

Arachnē — Etymology, Origin & Word History | Etymology Explorer