Where does “vakuumröhre” come from?

vakuumröhre (German) comes from German vakuum, from Latin vacuum, from Latin vacuus, from Latin -uus, from Proto-Italic *-wos, from Proto-Indo-European -wós — Creates adjectives from verb stems.

vakuumröhre (German): vacuum tube, valve (thermoelectric device)

Definitions

  1. vacuum tube, valve (thermoelectric device)

Ancestry of “vakuumröhre”, step by step

vakuumröhre traces back through two separate lines of ancestry.

via German vakuum

StepLanguageWordMeaning
1Germanvakuumvacuum
2Latinvacuumaccusative neuter singular of vacuus; an empty...
3Latinvacuusempty, vacant, unoccupied; devoid or free of,...
4Latin-uusforms adjectives on verbal stems
5Proto-Italic*-wos
6Proto-Indo-European-wósCreates adjectives from verb stems

via German röhre

StepLanguageWordMeaning
1Germanröhretube, duct, pipe
2Middle High Germanrōrereed, rush
3Old High Germanrōra
4Old High Germanrōrpipe
5Proto-Germanicrauząpipe, reed, shaft, tube; reed, rush
6Proto-Indo-Europeaner-eagle, bird; loose, light, rare, sparse; to fail,...
Every word from Proto-Indo-European -wósEvery word from Latin -uusEvery word from Latin vacuus