This is the 4306th most frequent Turkish word.
sudan
The Turkish word "sudan" means "from water" or "of water."
Here, 'sudan' refers to the water itself, denoting its trace.
Bardakta sudan bir iz kaldı.
There remains a mark of water in the glass.
In this usage, 'sudan' is metaphorical, implying extreme inexpensive value.
Sudan ucuz bir fiyata satın aldım.
I bought it for a price cheaper than water.
Here, 'sudan' metaphorically means trivial or insignificant.