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English word tree comes from Proto-Indo-European *derwo-, and later Proto-Germanic *trewwō (Fidelity, pledge.)
*derwo- (Proto-Indo-European)
*trewwō (Proto-Germanic)
Fidelity, pledge.
*drew-o- (Proto-Indo-European)
*trewą (Proto-Germanic)
Tree.
trēow (Old English)
trew (Middle English)
tree (English)
(cartomancy) The fifth Lenormand card.. (chemistry) A mass of crystals, aggregated in arborescent forms, obtained by precipitation of a metal from solution.. (computing theory) A recursive data structure in which each node has zero or more nodes as children.. (graph theory) A connected graph with no cycles or, equivalently, a connected graph with n vertices and n-1 edges.. (graphical user [...]