Where does “Panzerkuppel” come from?

Panzerkuppel (German) comes from German Kuppel, from Italian cupola, from Latin cupula, from Latin -ulus, from Proto-Italic -olos, from Proto-Italic -elos, from Proto-Indo-European -e-lós, from Proto-Indo-European -lós — Forms agent nouns from verbal roots.

Ancestry of “Panzerkuppel”, step by step

Panzerkuppel traces back through two separate lines of ancestry.

via German Kuppel

StepLanguageWordMeaning
1GermanKuppeldome
2Italiancupoladome, vault; cupola
3LatincupulaA small tub or cask
4Latin-ulusUsed to form a diminutive of a noun, indicating...
5Proto-Italic-olos
6Proto-Italic-elosForms desubstantival and deadjectival diminutive nouns
7Proto-Indo-European-e-lós
8Proto-Indo-European-lósForms agent nouns from verbal roots

via German Panzer

StepLanguageWordMeaning
1GermanPanzerarmour, armour plating, shield
2Middle High GermanPanzerarmour
3Old Frenchpancierecoat of mail
4Frenchpansebelly; first-person singular present indicative...
5Old Frenchpancestomach; belly
6Latinpantexbelly, paunch, guts
Every word from Proto-Indo-European -lós
Panzerkuppel — Etymology, Origin & Word History | Etymology Explorer