pro forma - as a matter of form⏎
pro tem - abbreviation of pro tempore, meaning "for the time being"⏎
pro per - abbreviation of propria persona, meaning "one's own person"⏎
R - Rex or Regina⏎
rebus sic stantibus - things thus standing⏎
ratio decidendi - reason for the decision⏎
quaeritur - It is sought.⏎
reddendo singula singulis - referring solely to the last⏎
pro tanto - for so much⏎
quid pro quo - this for that⏎