- Won’t is the correct way to contract will not.
- Wont is a type of behavior that is specific to a person. It’s also the wrong way to spell won’t.
Sometimes, when you forget to use an apostrophe, you get a word that’s just a misspelling of the original. But with won’t and wont, you get a word with its own completely unrelated meaning.
What Does Won’t Mean?
When we say won’t, we are actually saying will not. The form with the apostrophe is a contraction, like “don’t” and “can’t.” We owe the “o” in won’t to a sixteenth-century form of the word: wonnot.
It looked like it was going to rain for a second, but now it looks like it won’t.
What Does Wont Mean?
Wont is usually used as a noun meaning “a type of behavior specific to a person,” or “a habit.” It can also be used as an adjective synonymous with “accustomed.”
from Grammarly Blog https://www.grammarly.com/blog/wont-vs-wont/