ab initio from the beginning

ab ovo from the egg (i.e. from the very beginning. Cf. Ab ovo usque ad mala.)

ad depositum for (safe)keeping

ad finem to the end

ad hoc to this (i.e. for a particular use)

ad hominem to the person (i.e. relating to a particular person)

ad honorem for the sake of glory

ad infinitum witout limit

ad interim for the meantime

ad lib (abbr. of ad libitum) according to pleasure (i.e. improvised)

ad litem appointed for a lawsuit

ad literam to the letter

ad mandatum by direction

ad manus proprias in one's own hands

ad nauseam to sickness (i.e. to an excessive degree)

ad personam to the person, personal

ad protocollum to the record

ad referendum for further consideration

ad rem to the matter

ad tempus in time

ad ultimum at last

ad valorem according to the value (i.e. of taxes, in proportion to the estimated value of the goods)

alma mater bounteous mother (A figurative name for a university, sometimes used jokingly.)

conferre (Cf.) compare

curriculum vitae (CV) course of life

de facto in fact (i.e. in fact, whether by right or not)

de jure by right

dramatis personae the characters of the drama

eiusdem anni (e.a.) in/during the same year

et alii/alia (et al.) and others

et cetera (etc.) and so on

ex actis from the files (i.e. according to document)

ex cathedra from the (teacher's) chair (i.e. with full authority, esp. of papal pronouncement)

ex gratia from favour (i.e. as a favour rather than from an obligation)

ex mandato by direction

ex nihilo out of nothing

ex officio by virtue of one's office

ex parte from the party (i.e.in the interest of one side only or of an interested outside party)

ex post facto in the light of subsequent events (i.e. with retorspective action or force)

ex tempore from time (i.e. immediately, without any preparation)

ex usu from use (i.e. according to custom)

exempli grata (e.g.) for example

extra muros outside the walls (i.e. official)

id est (i.e.) that is to say

in absentia in one's absence

in abstracto in itself, in general

in absurdum to the absurd

in aeternum forever

in amplissima forma in greatest shape

in blanco in blank

in casu in this case

in concreto in particular

in corpore in the body (i.e. in full)

in duplo in duplicate

in extenso in full (i.e. nonabridged)

in extremis at the point of death (or in great difficulties)

in flagrante delicto in blazing crime (i.e. in the very act of committing an offense, "red-handed")

in genere in genereal

in infinitum endlessly

in loco at this place

in loco parentis in the place of a parent (used of a teacher etc. responsible for children)

in manu by hand

in medias res into the midst of things

in memoriam in memory of (a dead person)

in natura in a natural way (i.e. payment with goods instead of with money)

in nuce in a nutshell

in perpetuum forever

in pleno in full

in propria persona in his/her own person

in re in the matter of

in saecula saeculorum for ever and ever

in situ in its place

in spe ...to be (e.g. the bride to be)

in specie in particular

in summa in all

in statu populari under guardianship (or in a junior position at university, not having a degree)

in suspenso in a suspended state (i.e. indefinate)

in toto in full

in usu in frequent use

in usum for use

in utero in the womb

in vacuo in a vacuum

in vitro in glass (i.e. taking place in a test-tube or other laboratory enviroment)

in vivo in a living thing (i.e. taking place in a living organism)

infra below (i.e. below or further on in a book or writing)

infra dig (abbr. of infra dignitatem) beneath one's dignity

inter alia among other things

intra muros within the walls (i.e. unofficial)

lapsus calami slip of the pen

lapsus linguae slip of the tongue

lege artis according to the rules (of the art)

modus operandi (abb. m.o.) way of operating (i.e. the particular way in which a person performs a task or action)

modus vivendi way of living (i.e. and arrangement whereby those in dispute can carry on pending a settlement)

nemine contradicente (nom.con) with no one dissenting

nolens, volens unwilling, willing (willy-nilly)

nolle prosequi refuse to persue (i.e. the relinquish by a plaintiff or prosecutor of all or part of a suit)

non compos mentis not in one's right mind

non placet it does not please (a negative vote in a Church or assembly)

non possumus we cannot (i.e. a statement of inability to act in a matter)

non sequitur. it doesn't follow. (Used about a conclusion that doesn't logically follow from the premisses.)

per capita by heads (i.e. for each person)

per fas et nefas by right or wrong (i.e. by any means necessary)

per se by itself

peractis peragendi when that which should be done has been done

persona non grata a non-desirable person (used about a diplomatic representative who is not acceptable to the government to which he or she is accredited.)

placebo I shall appeal

post mortem after death

prima facie at first sight

primum mobile first moving thing (i.e. the central or most important source of motion or action)

pro haec vice for this occasion (only)

quantum satis enough

qui pro quo someone instead of someone else (i.e. a mix-up or a mistake)

quid pro quo something for something (i.e. a thing given as compensation)

quod erat demonstrandum (Q E D) Which was the thing to be proved

quod est which is

quod vide (q.v.) which see (in cross-references etc.)

requiescat in pace (R.I.P.) rest in peace

sic! so! (i.e. used/spelt as written. Used to call the attention to, or confirming, the form of quoted or written words.)

sine die without day

sine qua non without which not (i.e. an indispensable condition or qualification)

status quo the state in which (i.e. the existing state of affairs)

ut infra like below

ut supra like above