Where does “Ruhemasse” come from?

Ruhemasse (German) comes from German Maße, from Latin massa, from Ancient Greek μᾶζα, from Ancient Greek μάσσω, from Proto-Indo-European mh₂ǵyéti, from Proto-Indo-European meh₂ǵ- — to knead, stroke.

Ruhemasse (German): rest mass

Definitions

rest mass

Ancestry of “Ruhemasse”, step by step

Ruhemasse traces back through two separate lines of ancestry.

via German Maße

Step	Language	Word	Meaning
1	German	Maße	mass quantity of matter
2	Latin	massa	mass, bulk; load, burden; dough
3	Ancient Greek	μᾶζα	barley-bread or cake
4	Ancient Greek	μάσσω	to handle, work with my hands, knead; to wipe
5	Proto-Indo-European	mh₂ǵyéti	—
6	Proto-Indo-European	meh₂ǵ-	to knead, stroke

via German ruhen

Step	Language	Word	Meaning
1	German	ruhen	to rest; to sleep; to be buried, to lie; to be...
2	Middle High German	ruo(we)n	—
3	Old High German	ruowēn	—

Every word from Proto-Indo-European meh₂ǵ- →Every word from Proto-Indo-European mh₂ǵyéti →Every word from Ancient Greek μάσσω →