The word 'xirr' appears to be a typo or error, as it does not correspond to any standard English word. If you intended to refer to "XIRR," which stands for Extended Internal Rate of Return, it is a financial metric used to evaluate the profitability of investments with irregular cash flows. It helps to calculate the annualized rate of return that makes the net present value (NPV) of all cash flows equal to zero.
The term 'XIRR' is an acronym, and its components derive from the financial terminology related to investments and cash flows. 'X' usually represents a variable factor in many mathematical terms, while 'IRR' stands for Internal Rate of Return.
If you meant a different word, please clarify!