Yeah, it really isn't a word that makes sense intuitively

I had to look it up and find out that it has a whole different meaning then I thought lol

I suspect "person of legal age" is the outlier to the word "adult". See also the word adulterated — "to be made impure." So adultery fits in that context.

The word husband comes from husbandry, which means the care and maintenance of livestock. Roll that one around in your head a bit. And the word bride originally meant restraint... typically in the word unbridled which means unrestrained. Meanwhile, a bride is someone who has traditionally shown restraint for close to 2 decades (not having sex).

Furthermore, girl used to just mean child and it didn't mean a female one, you just called a group of children "girls" instead of "kids." Makes you wonder, then, why most people would address them as "you guys".

Funny how words change over time. No sarcasm here. Genuinely interesting.

When I learned about the ten commandments in school, we had to draw a cartoon based on one of the commandments. I made a joke based on the word adultery. I showed a guy cheating on his girlfriend with the caption "your boyfriend misunderstood the phrase don't commit adultery", the joke being the boyfriend is being immature by cheating and not acting like an adult. It seemed funnier when I was a kid