What means "recursively, recursed" in pack files dialog?

[oko]

What does it mean "recursively, recursed" e.g. in pack files dialog?
What would be difference between: "Also pack path names" and "Also pack path names (only recursed)"?
What would be difference between: "Pack subdirectories" and "Recursively pack subdirectories"?

[white]

What would be difference between: "Also pack path names" and "Also pack path names (only recursed)"?

Packing full path name versus packing relative path name.

What would be difference between: "Pack subdirectories" and "Recursively pack subdirectories"?

Packing subfolders versus packing subfolders and all subfolders within these subfolders.

[oko]

Thanks *white. It is much clearer to me.