Interesting note, I had to look it up xD

The english word for odd seem to originate from old-norse aka. Scandinavian. Then reffering to some sort of triangular plots of land. Merriam-Webster then writes:

"Since a point of land can be seen as the apex, or tip, of a triangle, with the other two angles forming a pair at the base, the word oddi was extended to mean "odd number""

In Sweden our word is today spelled as "Udda" rather than "Oddi", but it's basically the same pronunciation.

https://www.merriam-webster.com/wordplay/the-odd-history-of-odd#:~:text=Odd%20comes%20from%20the%20Old,at%20the%20base%2C%20the%20word