Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
Tuccĭus, i, m.; Tuccĭa, ae, f., the name of a Roman gens. 
- I.  M. Tuccius, Liv. 35, 41; Cael. ap. Cic. Fam. 8, 8.
- II.  L. Tuccius Valla, a physician, Plin. 7, 53, 54, § 183.
- III.  Tuccia, a celebrated vestal, Val. Max. 8, 1, 5; Plin. 28, 2, 3, § 12.