Ius alienis rebus utendi fruendi salva rerum substantia - Right to the use and enjoyment a thing of another, without changing the substance of the thing (Legal term - Definition of Uusfruct)
Ius auxiliandi - Right to help (Legal term)
Ius civile - Civil law (Legal term - Law which relates to acts between citizens)
Ius commercii - Property law (Legal term - right to buy and sell)
Ius Commune - The common law (Legal term - Thank you: Walid Kais )
Ius conditum - Law or force (Legal term)
Ius conubii - Right to marry (Legal term - also spelled as Ius connubii with two n)
Ius edicendi - Right to issue rules (Legal term - Said right was given to Authorities of the Roman Empire)
Ius est ars boni et aequi - The right is the art of what is good and what is fair (Legal term)
Ius fruendi - Entitled to the fruits (Legal term)
Ius gentium - Towns rights within the empire (Legal term)
Ius gentium est quod naturalis ratio inter omnes homines constituit - Law of nations is the natural reason establishes among all men (Legal term - Gaius, second century roman juriconsult)
Ius Gladii - The right of the sword (Legal term - Roman law referring to the power to sentence to death. For example, in the provinces this power was usually reserved for roman indigenous authority)
Ius habendi - Right to own (Legal term)
Ius honorum - Right to be honored (Legal term - right to be elected)
Ius Imperium - Power to command (Legal term)
Ius in re - Right in the action (Legal term)
Ius legis actionis - The right of legal action (Legal term)
Ius naturale est quod natura omnia animalia docuit - The natural law is what nature has taught all living things (Legal term)
Ius naturalis quod semper aequum ac bonum est - Natural law is what is always fair and good (Legal term - Julius Paulus)
Ius nec stultis solere succurri, sed errantibus - The law does not help the fools. but those who make a mistake (Legal term – Employment Law)
Ius privatum – Private Law (Legal term)
Ius provocationis - The right to appeal (Legal term)
Ius publicum - Public Law (Legal term)
Ius puniendi - Criminal law (Legal term – Refers to acts that are punisheable by the State)