Nyai/kyai yayut?

Kyai would means like sir or lord, in the past usually used in front of royal or important tosan aji actual name. Nyai is the female form of kyai. Literary they would also used to address people like Kyai Charless = Sir Charless, and Javanese usually regard tosan aji as person. Most probably not the name of the owner but the name of the sword itself.
You have turn 180 degrees to read that script. I turn your picture that way and guess the translation from that given picture. Some letter are covered by the hilt and might sounds differently like yuyut instead of yayut if there is another particle covered by the hilt. I don't read complex Javanese script, just the simple one I learn at school. Maybe someone who reads better could verify this

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Thanks