Step 1: Extract information from the text.
The text states that immature coconuts are harvested for their liquid endosperm, known as coconut water, which is referred to as Shahale.
Step 2: Discard irrelevant terms.
- Coprale → Misspelled and not utilized.
- Mahale, Kahale → Unrelated terms.
Step 3: Determine the correct term.
The accurate term is Shahale.
Final Answer: \[\boxed{\text{Immature coconut water is called Shahale.}}\]