Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
exrādīcĭtus (ērād-), adv., from the very roots, climax after radicitus, Plaut. Most. 5, 1, 63: subvertendam censeo radicitus, immo vero Plautino irati verbo exradicitus, Front. p. 239, ed. II. Mai.