common Latin expressions

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abbrev Latin English
ad lib ad libitum as you wish
a.m. ante meridiem before midday
p.m. post meridiem after midday
ca. / c. circa around / about / approximately
cf. confer bring together / compare this to
C.V. curriculum vitae course of life
et al. et alii (masculine)
et aliae (feminine)
et alia (neuter)
and other people
sqq. / et seq. / et seqq. et sequentes (masculine/feminine)
et sequentia (neuter)
and the words, pages, etc. that follow
etc. et cetera and so on
e.g. exempli gratia for example
ibid. ibidem in the same place
id.
ead.
idem (masculine)
eadem (feminine)
same person
i.a. inter alia among other things
i.e. id est that is
M.O. modus operandi method of operating
N.B. nota bene (singular)
notate bene (plural)
note well
No. numero number
P.S. post scriptum after what has been written
Q.E.D. quod erat demonstrandum that which was to be demonstrated
R.I.P. requiescat in pace (singular)
requiescant in pace (plural)
may he/she/they rest in peace
sic sic erat scriptum thus it was written
vs. / v. versus against
v.i. vide infra see below
v.s. vide supra see above
a contrario on the contrary
a fortiori even more so
a posse ad esse from possibility to actuality
a posteriori based on observation
a priori occurring or known before the event
ad hoc to this / for this
ad hominem to/at the person
ad interim temporarily
alma mater nourishing mother
alter ego another self
bona fide in good faith
carpe diem seize the day
casus belli event of war
ceteris paribus all other things being equal, disregarding or eliminating extraneous factors in a situation
coitus interruptus interrupted sexual intercourse
cum laude with praise
de facto by deed
de jure by law
deus ex machina a god from a machine (a contrived or artificial solution, usually to a literary plot)
ex nihilo from nothing
ex situ out of position
ex vivo out of or from life
hic et nunc here and now
in situ in the place
in vitro in glass test tube or Petri dish
in vivo in a living thing
jus in bello law in war
magnum opus masterpiece
mea culpa my fault
mens rea guilty mind
mutatis mutandis after changing what needed to be changed
non sequitur a comment not making sense in its context
per se through itself / by itself / in itself
persona non grata an unwelcome, unwanted or undesirable person
post mortem after death
pro bono publico for the public good
pro rata proportionately
pro tempore for the time being
quid pro quo a thing for a thing
res judicata a matter which has been decided by a court
rigor mortis rigidity of corpses 3–4 hours after death
seculo seculorum forever and ever
status quo current condition or situation
sub poena under penalty
sui generis of its own kind
tu quoque you too
ut dicitur as has been said
viva voce by word of mouth