Quick answer
Manish is a boy name meaning "thought, wisdom".
Meaning and history
From Sanskrit मनीषा ( manīṣā ) meaning "thought, wisdom".
Notes and context
Usage: hindi, marathi, bengali, malayalam, punjabi, tamil, nepali | Hindi: मनीष; Bengali: মণীশ; Malayalam: മനീഷ്; Gurmukhi: ਮਨੀਸ਼; Tamil: மணீஷ்