Where does “Stammbaumtheorie” come from?

Stammbaumtheorie (German) comes from German Stammbaum, from German baum, from Middle High German boum, from Old High German boum, from Proto-West Germanic baum, from Proto-Germanic baumaz, from Proto-Indo-European bʰew- — to grow, swell; to swell, wax, grow; to blow; to...

Stammbaumtheorie (German): The tree model theory, a theory of the evolution of languages analogous to the concept of a family tree, with the assumption that each language has evolved from a single parent language, with languages that share a common ancestor belonging to the same language family

Definitions

  1. The tree model theory, a theory of the evolution of languages analogous to the concept of a family tree, with the assumption that each language has evolved from a single parent language, with languages that share a common ancestor belonging to the same language family

Ancestry of “Stammbaumtheorie”, step by step

Stammbaumtheorie traces back through two separate lines of ancestry.

via German Stammbaum

StepLanguageWordMeaning
1GermanStammbaumfamily tree
2Germanbaumtree
3Middle High Germanboumtree
4Old High Germanboumtree, beam
5Proto-West Germanicbaumtree; beam
6Proto-GermanicbaumazAlternative form of *bagmaz; tree, beam, balk;...
7Proto-Indo-Europeanbʰew-to grow, swell; to swell, wax, grow; to blow; to...

via German Theorie

StepLanguageWordMeaning
1GermanTheorietheory
Every word from Proto-Indo-European bʰew-Every word from Proto-Germanic baumazEvery word from Proto-West Germanic baum