Where does “periodesystem” come from?

periodesystem (Norwegian Bokmål) comes from Norwegian Bokmål periode, from Ancient Greek περίοδος, from Ancient Greek ὁδός, from Proto-Hellenic *hodós.

periodesystem (Norwegian Bokmål): periodic table

Definitions

periodic table

Ancestry of “periodesystem”, step by step

periodesystem traces back through two separate lines of ancestry.

via Norwegian Bokmål periode

Step	Language	Word	Meaning
1	Norwegian Bokmål	periode	a period; an era
2	Ancient Greek	περίοδος	going round in a circle, flank march;...
3	Ancient Greek	ὁδός	threshold; road, path, way; journey, trip,...
4	Proto-Hellenic	*hodós	—

via Norwegian Bokmål system

Step	Language	Word	Meaning
1	Norwegian Bokmål	system	a system
2	Ancient Greek	σύστημα	a whole made of several parts or members, system;...
3	Ancient Greek	-μᾰ	"suffix forming a noun denoting the result of an...
4	Proto-Indo-European	-mn̥	Creates action nouns or result nouns from verbs

Every word from Proto-Hellenic *hodós →Every word from Ancient Greek ὁδός →Every word from Ancient Greek περίοδος →