Where does “tubellum” come from?

tubellum (Vulgar Latin) comes from Latin tūber, from Proto-Italic tūβos, from Proto-Indo-European tewh₂- — to swell; to crowd; to be strong.

Ancestry of “tubellum”, step by step

StepLanguageWordMeaning
1Latintūbera hump, bump, swelling, protuberance; excrescence
2Proto-Italictūβos—
3Proto-Indo-Europeantewh₂-to swell; to crowd; to be strong

Words derived from “tubellum”

Every word from Proto-Indo-European tewh₂- →Every word from Proto-Italic tūβos →Every word from Latin tūber →