quid pro quo - something given in fair exchange

 

quod vide - (in cross-references) which see.

 

raison d’etre – the purpose that justifies a thing’s existence

 

range (fem, rangee) - domesticated orderly, settled

 

rara avis - a rare kind of person or thing

 

rechauffe - a warmed-up; a rehash

 

reduction ad absurdum - a method of disproving a premises by showing that the logical consequence is absurd

 

regina- the reigning queen (after a name or in the titles of lawsuits, e.g. Regina (V) Jones the Crown versus Jones)

reliquiae – remains

requiescat in pace – (on tombstones) may he/she rest in peace    -

rex – the reigning king (after a name o in the titles of lawsuits, e.g. Rex (v) Jones the Crown versus Jones).

Roman-a-clef- a novel giving invented names to real people or events

roman-fteuve – a novel, or series of novels, recounting the lives of one family

rouge-et-noir- a gambling game in which players place stakes on a red and black table.

rus in urbe – the country in the city (used of a pleasant suburb)