Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
ūbertim, adv. [2. uber], plentifully, abundantly, copiously (mostly post-Aug.; not in Cic.): ubertim lacrimulas fundere, Cat. 66, 17: flere, Suet. Caes. 81; id. Tit. 10; Sen. Contr. 4, 25; Petr. 134; App. M. 5, p. 161; Claud. Laud. Seren. 214.