Thakur
Nirmal Chandra Sinha stated that the word Thakura is "unknown" to the Vedic and Classical Sanskrit and finds no mention in the Sanskrit literature preceding 500 BCE. He suggests, however, that "the word was possibly current in many north Indian dialects before the Imperial Guptas". Sinha notes that many scholars, such as Buddha Prakash, Frederick Thomas, Harold Bailey, Prabodh Bagchi, Suniti Chatterji, and Sylvain Lévi, have suggested that Thakura is a borrowed word in the Indian lexis from the Tukhara regions of Inner Asia. Sinha observed: