Where does “roof tree” come from?

roof tree (English) comes from English Roof, from Middle English rof, from Old English hrōf, from Proto-Germanic hrōfą, from Proto-Indo-European krāpo-, from Proto-Indo-European krāwə- — to cover, heap.

roof tree (English): The ridgepole of a peaked roof, especially that of a house

Definitions

  1. The ridgepole of a peaked roof, especially that of a house

Ancestry of “roof tree”, step by step

roof tree traces back through two separate lines of ancestry.

via English Roof

StepLanguageWordMeaning
1EnglishRoofA Chinese constellation located near Aquarius and Pegasus, one of the 28 lunar mansions and part of the larger Black Turtle
2Middle EnglishrofA roof; A house or building; a edifice used for...
3Old Englishhrōfroof, ceiling; top, summit; heaven, sky
4Proto-Germanichrōfąroof
5Proto-Indo-Europeankrāpo-
6Proto-Indo-Europeankrāwə-to cover, heap

via English tree

StepLanguageWordMeaning
1EnglishtreeA perennial woody plant, not exactly defined, but...
2Middle EnglishtreA tree or a plant that resembles one
Every word from Proto-Indo-European krāwə-