Lewis & Short

Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.

quīdam, quaedam, quoddam, and subst. quiddam, pron. indef., a certain, a certain one, somebody, something (v. aliquis init.): quidam ex advocatis, Cic. Clu. 63, 177: quidam de collegis nostris, id. Fam. 11, 21, 5: quaedam certa vox, id. de Or. 3, 12, 44: inopem quendam describere, id. Att. 7, 16: quodam tempore, a certain (indefinite) time, once upon a time, once, id. Fin. 5, 2, 4.
In plur., some: excesserunt urbe quidam, alii mortem sibi consciverunt, Liv. 45, 10: quaedam quaestiones, Cic. Top. 21, 79.
Also with gen.: quidam bonorum caesi, Tac. A. 1, 49: quibusdam Andriorum persuasit, etc., Liv. 31, 45, 7.
Often with an adj. to soften the assertion: timiditate quādam ingenuā, Cic. de Or. 2, 3, 10: qui virtutem duram et quasi ferream quandam esse volunt, id. Lael. 13, 48.
Subst.: quiddam, something; with gen.: quiddam mali, Cic. Leg. 3, 10, 23.
Without gen.: quiddam divinum, something divine, Cic. Ac. 1, 9, 33.
Plur.: quaedam, si credis consultis, mancipat usus, Hor. Ep. 2, 2, 159.