Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
* amplĭfĭcē, adv., v. amplificus.
* amplĭfĭcus, a, um, adj. [amplusfacio], splendid, Fronto, Or. 21, Fragm. 3, p. 259 Francof.
Hence, * adv.: amplĭfĭcē, splendidly: amplifice vestis decorata, Cat. 64, 265.