Here's why:
* Rajesh is a combination of two words: "Raj" (meaning "king" or "rule") and "esh" (which is a common suffix in names, often indicating a male).
* It's not a pure Hindi word: While the components are from Sanskrit, the combination itself is a modern construct, likely popularized in the 20th century.
Therefore, Rajesh doesn't have a specific meaning in the Hindi dictionary, but it signifies "kingly" or "ruler-like".