> Fun fact: “Akari” means light in Japanese, both as illumination and as lightness.
Wow! I love it when two languages have matching homonyms. I always wonder "what does it mean ?". Like, in English "second" to mean the unit of time and the place after "first" feels like two distinct usages. But it's the same in Spanish ("segundo"), which points to a deeper connection (and isn't so unsurprising given the shared roots of the languages): the unit of time is called that because it's the second subdivision of an hour.
The two usages of "light" in English are so distinct I'm quite surprised it's like this in the entirely unrelated Japanese language. Is this just a big coincidence, or does anyone know any deeper reasons here?