ratio decidendi - reason for the decision⏎
quantum - how much⏎
reddendo singula singulis - referring solely to the last⏎
qua - which; as⏎
pro rata - from the rate⏎
pro per - abbreviation of propria persona, meaning "one's own person"⏎
propria persona - proper person⏎
res communis - common to all⏎