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Latin Terms in English

Mostly Latin Legal Terms

By , About.com Guide

Latin has given English many words, usually circuitously through the French. Such Latin words may be altered in some way, characteristically, in the ending. Other Latin words have been borrowed, throughout the ages, to cover technological or scientific innovations. The following terms were imported directly from the Latin long ago. Their form is unchanged, although sometimes abbreviated. Many of these Latin words can be found in legal contexts.

For more on words imported from Latin into common and specialized areas of English, see

Ab Extra

Ab extra is Latin for "from outside."

Ab Initio

Ab initio is the Latin for "from the beginning."

Ad Hoc

Ad hoc is a Latin term meaning "for this purpose".

Ad Hominem

Ad hominem is a Latin term meaning "to the man".

Ad Infinitum

Ad infinitum is the Latin for "to infinity."

Amicus Curiae

Amicus curiae is the Latin for "a friend of the court."

Bona Fide

Bona Fide means "in good faith."

Ceteris Paribus

Ceteris paribus means "other things being equal."

De Facto

De facto means "in fact."

De Iure

De iure means "based in law" and is contrasted with de facto.

De Novo

De novo means "anew".

Ex Cathedra

Ex cathedra means "from the [bishop's] chair."

In Situ

In situ means "in place."

Inter Alia

Inter alia is the Latin for "among other things."

Ipso Facto

Ipso facto is Latin for "by the fact itself."

Mutatis Mutandis

Mutatis mutandis means that the necessary things have been changed.

Non Sequitur

A non sequitur is something that does not follow.

Pari Passu

Pari passu means at an equal pace.

Persona Non Grata

Persona non grata is the Latin for a person who is not welcome.

Prima Facie

Prima facie means on its first appearance.

Pro Forma

Pro forma is the Latin for "as a matter of form".

Pro Rata

Pro rata is the Latin for "according to the amount calculated."

Pro Tempore

Pro tempore or pro tem is the Latin for "for the time (being)."

Q.E.D.

Quod erat demonstrandum (Q.E.D.) is the Latin for "that which was to be demonstrated."

Reductio ad Absurdum

Reductio ad absurdum is the Latin for "reduction to absurdity."

R.I.P.

R.I.P. stands for requiescat in pace, which translates as "rest in peace."

Rigor Mortis

Rigor mortis is the Latin for "stiffness of death."

Sine Qua Non

Sine qua non is the Latin for "without which not."

Sub Poena

Sub poena comes from the Latin for "under punishment."

Sui Generis

Sui generis is the Latin for "of one's own kind" or "peculiar".

Summa cum Laude

Summa cum laude is the Latin for "with highest praise."

Tabula rasa

Tabula Rasa is the Latin for "scraped tablet."

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