Where does “subtree” come from?

Subtree comes from English sub combined with tree, which derives from Latin sub and Proto-Italic supo, ultimately from Proto-Indo-European upo and dóru meaning wood or tree.

subtree (English): A tree wholly contained in another

Definitions

  1. A tree wholly contained in another

Ancestry of “subtree”, step by step

StepLanguageWordMeaning
1Englishsub-under, beneath; subsidiary, secondary; almost,...
2Latinsub-under, sub
3Proto-Indo-Europeanupóunder, below
4Proto-Indo-Europeanh₃ewp-—
Every word from Proto-Indo-European h₃ewp- →