Where does “strålföljning” come from?

strålföljning (Swedish) comes from Swedish följa, from Old Swedish fylghia, from Old Norse fylgja, from Proto-Germanic fulgijaną — to follow.

strålföljning (Swedish): ray tracing

Definitions

  1. ray tracing

Ancestry of “strålföljning”, step by step

strålföljning traces back through 3 separate lines of ancestry.

via Swedish följa

StepLanguageWordMeaning
1Swedishföljafollow; to go after; follow; to be the next in a...
2Old Swedishfylghiato follow; to accompany; to seek, to aim at
3Old Norsefylgjacompanionship; kind of guardian angel, guardian...
4Proto-Germanicfulgijanąto follow

via Swedish stråle

StepLanguageWordMeaning
1Swedishstrålea ray, a beam; ray; a line extending indefinitely...
2Middle Dutchstrâlearrow
3Old Dutchstrāla
4Proto-West Germanic*strāluarrow

via English ray tracing

StepLanguageWordMeaning
1Englishray tracingA technique that produces realistically shaded images by projecting imaginary light rays to determine which parts of an object should be illuminated
Every word from Proto-Germanic fulgijanąEvery word from Old Norse fylgjaEvery word from Old Swedish fylghia