Useful Latin
sine non qua ~ An essential condition or element; an indispensable thing
non sequitor ~ A statement that does not follow logically from what preceded it.
id est ~ That is, or namely (i.e.)
exempli gratia ~ For example (e.g.)
deus ex machina ~ A person or event that provides a sudden and unexpected solution to a difficulty.
ad hominem ~ An argument which criticizes the person rather than their beliefs or actions.
reductio ad absurdum ~ Disproof of a proposition by showing that it leads to absurd or untenable conclusions.
ex nihilo nihil fit ~ From nothing, nothing comes
in medias res ~ "in the middle of things"
ad nauseam ~ To a disgusting or ridiculous degree; to the point of nausea
persona non grata ~ Fully unacceptable or unwelcome, especially to a foreign government.
bona fide ~ "good faith"
a fortiori ~ For a still stronger reason; all the more.
stare decisis ~ to stand by things already decided
status quo ~ the current state of being
homo homini lupus ~ man is wolf to man
ex post facto ~ from what is done afterward
ex parte ~ From a one-sided or strongly biased point of view; polemic
caveat emptor ~ let the buyer beware