Where does “spot beam” come from?

spot beam (English) comes from English spot, from English -y, from Middle English -y, from Old English -iġ, from Proto-West Germanic -g, from Proto-Germanic -gaz, from Proto-Indo-European -ḱos — -y, -ic.

spot beam (English): A satellite signal that is specially concentrated...

Definitions

  1. A satellite signal that is specially concentrated...

Ancestry of “spot beam”, step by step

spot beam traces back through two separate lines of ancestry.

via English spot

StepLanguageWordMeaning
1EnglishspotA round or irregular patch on the surface of a...
2English-yAdded to nouns and adjectives to form adjectives...
3Middle English-yDesignates an adjective, in many cases formed by...
4Old English-iġ-y, -ic
5Proto-West Germanic-gForms adjectives from nouns and verbs with a...
6Proto-Germanic-gaz-y
7Proto-Indo-European-ḱos-y, -ic

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...
Every word from Proto-Indo-European -ḱosEvery word from English -yEvery word from Old English -iġ