Yahudi (yəhōdē) (Ihudae, Jahudae) (spelling uncertain) cf. INRI

The tribe of Judah
The Jewish People
of or pertaining to Jews

The given name of a common household sprite.
A miserly pinch-penny sprite, the keeper of the lamp.
Yahudi now lives in the refrigerator.
His purpose is to save electricity and wear and tear on the appliance bulb.
When you open the refrigerator door he reluctantly turns on the light.
When you close the refrigerator door he quickly turns it off again.
If you open the door very, very, slowly, you just might catch him asleep.

In olden times Yahudi blew out the candles. (a draught)
Beeswax candles were always expensive.

Yahudi is sometimes blamed for other inexplicable occurrences about the house.

Submitted in fond memory of my Polish uncles.