ratio decidendi - reason for the decision⏎
prima facie - at first face⏎
pro rata - from the rate⏎
pro tanto - for so much⏎
pro per - abbreviation of propria persona, meaning "one's own person"⏎
qui tam - abbreviation of qui tam pro domino rege quam pro se ipso in hac parte sequitur, meaning "who pursues in this action as much for the king as himself".⏎
propria persona - proper person⏎
rebus sic stantibus - things thus standing⏎
res communis - common to all⏎
ratio scripta - written reason⏎