Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
1. trăbĕa, ae, f., a robe of state of augurs, kings, knights, etc.
2. Trăbĕa, ae, m., Q., an ancient Roman comic poet, Cic. Fam. 9, 21, 1; id. Fin. 2, 4, 13; id. Tusc. 4, 31, 67; Auct. ap. Gell. 15, 24.