An application or two of thin CA glue could help strengthen the wood. There are also thin strengthening epoxies available that are used in boat building (amongst other things).

I’d also start thinking about a suitable stand for it, which may not be easy to find as it’s so off-centred. I’d definitely fit a strap button to the end of the blade as well as the end of the main body, so that you can at least stand it upright on the floor.