Moro Kris?

[lrb1200]

Thank you in advance for your time,

I am new to this discipline of study, my endeavors around edged weapons has been primarily focused to nihonto. I was steered to this web site by an individual who sang the praises of knowledge concerning these treasures of history.
In my possession is what appears to me to be a Moro Kris ( simply a guess) that my father who served in the pacific until the end of WWII brought back with other artifacts.
I perceive this blade is filled with innuendos to be appreciated that I have no cognizance of, and I am looking for understanding, I also realize this is no small request of knowledge, given my level of devotion to the study.
The innuendos associated with the appreciation of this type of blade elude me, and again I humbly submit it for your knowledge.
The blade itself is 23 in., the engravings on it are a mystery as is the the manor of which the handle is mounted to the blade,and the waves close to the hilt. These questions and the age and origin are what I seek as a platform to understand what this blade is.

Respectfully
Leonard