Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
quā̆dringentĭes, adv. [quadringenti], four hundred times: HS quadringenties, forty millions of sesterces, Cic. Verr. 2, 2, 10, § 26; id. Phil. 2, 37, 93; id. Rab. Post. 8, 21.