Where does “Kopfplatte” come from?

Kopfplatte (German) comes from German platte, from Middle High German platte, from Old High German platta, from Vulgar Latin platta, from Latin plattus, from Ancient Greek πλατύς, from Proto-Indo-European pléth₂us, from Proto-Indo-European pleth₂- — flat.

Kopfplatte (German): headstock

Definitions

headstock

Ancestry of “Kopfplatte”, step by step

Kopfplatte traces back through two separate lines of ancestry.

via German platte

Step	Language	Word	Meaning
1	German	platte
2	Middle High German	platte	—
3	Old High German	platta	—
4	Vulgar Latin	platta	metal plate
5	Latin	plattus	flattened
6	Ancient Greek	πλατύς	wide, broad; flat, level; broad-shouldered
7	Proto-Indo-European	pléth₂us	flat, broad
8	Proto-Indo-European	pleth₂-	flat

via German kopf

Step	Language	Word	Meaning
1	German	kopf	head
2	Middle High German	kopf	drinking vessel
3	Latin	cūppa	drinking vessel
4	Latin	cūpa	tub, cask, tun, vat
5	Ancient Greek	κώπη	a handle
6	Proto-Indo-European	kóh₂p-eh₂	—
7	Proto-Indo-European	keh₂p-	to seize, grab; to seize; take up; lift; to take,...

Every word from Proto-Indo-European pleth₂- →Every word from Proto-Indo-European pléth₂us →Every word from Ancient Greek πλατύς →