Aestimatio delicti praeteriti ex post facto non crescit - The evaluation of a past crime does not increase by a subsequent event (Legal term)
Affectio societatis - Intention to form a society (Legal term)
Affidavit - Gave faith (Legal term - A sworn written statement)
Alibi - In another place (Legal term - In legal parlance is used to designate the excuse, namely that a person has not been at the crime scene)
Alieni iuris - Alian right (Legal Term - A person (e.g. a minor) who is legally dependent on another. Compare with sui iuris)
Aliud est punire, aliud vindicare - One thing is to punish, to vindicate is another (Legal Term Leonard Lessius 1554-1623)
Alter parens - Other Parent (Legal term - Person whom something is owe )
Amicus curiae - A friend of the court (Legal term - Advisor in matter of law)
Animus confidenti - Intention to confess (Legal term)
Animus defendendi - Intention to defend (Legal term)
Animus domini - Intent to be owner (Legal term)
Animus donandi - Intention to make a gift (Legal term)
Animus iniuriandi - Intent to injure (Legal term normally written as cum animo iniuriandi)
Animus iocandi - Intent to joke (Legal term)
Animus laedendi - Intent to injure (Legal term)
Animus lucrandi - Intent to make a profit (Legal term)
Animus necandi - Intent to harm (Legal term)
Animus Possidendi - An intention to possess (Legal Term - In claims for adverse possession that concerns land, it is essential to prove that person who has physically possess the land must also have an intention to actually possess the land. Without which, no Adverse Possession could be established. - Thank you: Mathilda Kwong)
Animus rem sibi habendi - Intent to keep the thing (Legal term)
Animus revertendi - Intent to return (Legal term - Roman law applied to lost animals. They no longer belonged to their owner, if they left the property without the intent to return)
Animus solvendi - Intention to pay (Legal term)
Apud iudisem - Near the judgement (Legal term - procedural stage before the judge presented his sentence)
Arbiter compromissarius - Arbiter of compromise (Legal Term - A referee who was chosen by the two parties in dispute)
Arbiter ex nudo pacto - Arbiter without covenant (Legal term - A referee who was chosen by the two parties of the dispute, but they are not obliged to obey his decision)
Arbiter in causis bonae fidei - Arbiter in good faith (Legal term)
