Where does “teletube” come from?

teletube (English) comes from English tube, from Middle French tube, from Latin tubus, from Latin tuba — A long trumpet over 1 meter in length; tube.

Ancestry of “teletube”, step by step

teletube traces back through two separate lines of ancestry.

via English tube

StepLanguageWordMeaning
1EnglishtubeAnything that is hollow and cylindrical in shape;...
2Middle Frenchtubeconduit; canal; pipe
3Latintubustube, pipe; trumpet used at sacrifices
4LatintubaA long trumpet over 1 meter in length; tube

via English tele

StepLanguageWordMeaning
1EnglishteleAlternative form of telly
2Englishtele-over a distance; television; telegraph
3Ancient Greekτῆλεfar off, afar, far away
4Proto-Indo-Europeankʷelh₁-to move; to turn, go round; turn, become
Every word from Latin tubaEvery word from Latin tubusEvery word from Middle French tube