Where does “ความเร็ว” come from?

ความเร็ว (Thai) comes from Thai ความ, from Proto-Tai ɣwaːmᴬ — matter.

ความเร็ว (Thai): speed; velocity

Definitions

  1. speed; velocity

Ancestry of “ความเร็ว”, step by step

ความเร็ว traces back through two separate lines of ancestry.

via Thai ความ

StepLanguageWordMeaning
1Thaiความaffair; matter; content; essence; subject;...
2Proto-Taiɣwaːmᴬmatter

via Thai เร็ว

StepLanguageWordMeaning
1Thaiเร็วfast; quick; rapid; early; fast; quickly; rapidly

Words derived from “ความเร็ว

Every word from Proto-Tai ɣwaːmᴬEvery word from Thai ความ
ความเร็ว — Etymology, Origin & Word History | Etymology Explorer