Help, I can't classify it

That's a very unusual coin. For most coins the obverse and reverse are the same size, but there is a huge difference here.

Please provide the diameter and weight of the coin. It would also be useful to crop the images--that would improve the images (and reduce the apparent discrepancy between the size of the two coins).

It may be French, with Latin lettering.
Reverse lettering: SIT NOMEN DNI BENEDIC

This has a similar reverse with most of those letters ...
https://en.numista.com/catalogue/pieces30983.html

I got that from DNI (abbreviation for DOMINI) as I had seen it on previous
identifications I did. Some other letters from my previous reply are also visible ...



but not sure if BENEDIC is on there - may be something else. No idea what
the design is on the other side, though again some letters (IN) are visible.

Sit Nomen Domini = Blessed be the Name of the Lord

https://en.numista.com/catalogue/pieces139141.html

This is the coin.
Thanks zacUK, you showed me the thread to pull to classify the coin