Where does “eksirei” come from?

eksirei (Swahili) comes from English X-ray, from German X-Strahl, from German strahl, from Middle High German strāle, from Old High German strāla, from Proto-Germanic *strālu, from Proto-Indo-European strēl-, from Proto-Indo-European ster- — sterile, infertile.

eksirei (Swahili): X-ray

Definitions

  1. X-ray

Ancestry of “eksirei”, step by step

StepLanguageWordMeaning
1EnglishX-rayShort wavelength electromagnetic radiation...
2GermanX-StrahlX-ray
3Germanstrahlbeam, ray (e.g. of light)
4Middle High Germanstrālearrow, beam
5Old High Germanstrālaarrow, lightning bolt
6Proto-Germanic*strālu
7Proto-Indo-Europeanstrēl-arrow
8Proto-Indo-Europeanster-sterile, infertile
Every word from Proto-Indo-European ster-