kṛṣṇa-vÄñchÄ-pÅ«rti-rÅ«pa kare ÄrÄdhane
ataeva 'rÄdhikÄ' nÄma purÄṇe vÄkhÄne
kṛṣṇa-vÄñchÄ - of the desire of Lord Kṛṣṇa; pÅ«rti-rÅ«pa - of the nature of fulfillment; kare - does; ÄrÄdhane - worship; ataeva - therefore; rÄdhikÄ - ÅšrÄ«matÄ« RÄdhikÄ; nÄma - named; purÄṇe - in the PurÄṇas; vÄkhÄne - in the description.
The name “RÄdhĆis derived from the root word ÄrÄdhana, which means “worship.†The personality who excels all in worshiping Kṛṣṇa may therefore be called RÄdhikÄ, the greatest servitor.