In this verse the word bhagavattamah is very significant, for the word bhagavat is used especially to refer to the Supreme Personality of Godhead, as the word bhagavan (the Supreme Personality of Godhead) is derived from the word bhagavat. Sometimes, however, we see that the word bhagavan is used for great personalities like Lord Brahma, Lord Siva and Narada Muni. This is the case with Prthu Maharaja, who is described here as the best of the bhagavans, or the best of the lords. A person can be so addressed only if he is a great personality who exhibits extraordinary and uncommon features or who attains the greatest goal after his disappearance or who knows the difference between knowledge and ignorance. In other words, the word bhagavan should not be used for ordinary persons.