Where does “roofbeam” come from?

roofbeam (English) comes from English beam, from Middle English beem, from Old English bēam, from Proto-West Germanic baum, from Proto-Germanic baumaz, from Proto-Indo-European bʰew- — to grow, swell; to swell, wax, grow; to blow; to...

roofbeam (English): Any of the beams that form a roof

Definitions

  1. Any of the beams that form a roof

Ancestry of “roofbeam”, step by step

roofbeam traces back through two separate lines of ancestry.

via English beam

StepLanguageWordMeaning
1EnglishbeamAny large piece of timber or iron long in...
2Middle EnglishbeemA usually wooden beam or pole
3Old Englishbēamtree, cross, gallows, column, pillar, wood, beam,...
4Proto-West Germanicbaumtree; beam
5Proto-GermanicbaumazAlternative form of *bagmaz; tree, beam, balk;...
6Proto-Indo-Europeanbʰew-to grow, swell; to swell, wax, grow; to blow; to...

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
Every word from Proto-Indo-European bʰew-