quīcumque, quaecumque, quodcumque, indef. rel. pron., whoever, whichever, whatever.
quīdam, quaedam, quiddam, and as adj., quoddam, indef. pron., a certain one, somebody; a certain.
quidem, adv., indeed, in fact, to be sure; nē … quidem, not even, not at all.
quiēscō, ere, ēvī, ētus, to rest, repose, keep quiet.
quiētus, a, um [quiēscō], adj., at rest, free from exertion; undisturbed, quiet, peaceful.
quīlibet, quaelibet, quodlibet (quidlibet), indef. pron., any one you please, any one, who or whatsoever.
quīn [quī, adv., how? + ne], conj., how not? why not? that, that not, but that; quīn et or etiam, nay more.
quīngentēsimus, a, um [quīngentī], num. adj., five hundredth.
quīngentī, ae, a [quīnque + centum], num. adj., five hundred.