What does the word buck means in 'the buck stops here'? [closed]

I know that the meaning of the idiom 'the buck stops here' is to accept responsibility. For example, The buck stops here with me. I take the blame for the team's performance.

There are multiple meanings of the buck i.e. dollar, a male animal, antelope, and buckskin. I was wondering what does the buck means in this idiom.

Individual words in an idiom don’t necessarily mean anything as used in the idiom - that’s one of the things that makes it an idiom. In this case you can read buck as responsibility. Wikipedia mentions a knife with a handle made from an animal part (buckhorn) that was passed as a counter in a poker game as part of the entomology of the idiom “passing the buck”. The buck stops here comes from passing the buck.