Where does “Vulkaneifel” come from?

Vulkaneifel (German) comes from German Vulkan, from Latin Vulcānus, from Ancient Greek ὀδών — Ionic form of ὀδούς.

Ancestry of “Vulkaneifel”, step by step

Vulkaneifel traces back through two separate lines of ancestry.

via German Vulkan

StepLanguageWordMeaning
1GermanVulkanvolcano
2LatinVulcānusVulcan, the Roman god of fire and metalwork, considered equivalent to the Greek Hephaestus and various German and Celtic gods
3Ancient GreekὀδώνIonic form of ὀδούς

via German Eifel

StepLanguageWordMeaning
1GermanEifel—
Every word from Ancient Greek ὀδών →Every word from Latin Vulcānus →Every word from German Vulkan →