- Id est (i.e) – That is.
- Id quod commune est, nostrum esse dicitur – That which is common is said to be ours.
- Idem – The same person or thing.
- Ignorantia legis neminem excusat- Ignorance of law is no excuse.
- Ignorantia Facti Excusat – Ignorantia Juris Non Excusat – Ignorance of facts may be excused but not ignorance of law.
- Imperium in imperio – A sovereignty within a sovereignty.
- Impotentia excusat legem – Impossibility is an excuse in the law.
- Impunitas semper ad deteriora invitat – Impunity always leads to greater crimes.
- In absentia – “In absence,” or more fully, in one’s absence.
- In aequali jure melior est conditio possidentis – When the parties have equal rights, the condition of the possessor is better.
- In camera – In private.
- In criminalibus probationes debent esse luce clariores – In criminal cases the proofs ought to be cleared than the light.
- In curia domini regis, ipse in propria persona jura discernit – In the King’s Court, the King himself in his own person dispenses justice.
- In delicto – At fault.
- In esse – In existence.
- In extenso – At full length.
- In fictione legis aequitas existit – A legal fiction is consistent with equity.
- In foro conscientiae – In the forum of conscience.
- In forma pauperis – As a poor person.
- In futoro – In the future.
- In limine – On the threshold.
- In mortua manu – In a dead hand.
- In novo casu novum remedium apponendum est – In a new case a new remedy is to be applied.
- In omnibus – In every respect.
- In pari delicto potior est conditio possidentis – When the parties are equally in the wrong the condition of the possessor is better.
- In personam – Against the person.
- In pleno – In full.
- In prompt – In readiness.
- In posse – In a state of possibility.
- In quo quis delinquit in eo de jure est puniendus – In whatever thing one offends in that he is to be punished according to law.
- In situ – In its place.
- In terrorem – As a warning or deterrent.
- Indicia – Marks, signs.
- Injuria non excusat injuriam – A wrong does not excuse a wrong.
- Injuria sine damno – Injury without damage.
- Innuendo – Spoken words which are defamatory because they have a double meaning.
- Inter alia – Amongst other things.
- Inter vivos – Between living persons.
- Intra vires – Within the powers.
- Inter se – Among themselves.
- Interest reipublicae res judicatas non rescindi – It is in the interest of the State that things adjudged be not rescinded.
- Interest reipublicae ut quilibet re sua bene utatur – It is in the interest of the State that every one use properly his own property.
- Interest reipublicase ut sit finis litium – It is in the interest of the State that there be an end to litigation.
- Interim – Temporary, in the meanwhile.
- Interpretare et concordare leges legibus est optimus interpretandi modus – To interpret and harmonize laws is the best method of interpretation.
- Intestate – To die without making a Will.
- Invito beneficium non datur – A benefit is not conferred upon one against his consent.
- Ipsissima verba – The very words of a speaker.
- Ipso facto – By that very fact.
- Ipse Dixit – He himself said it.
- Ira furor brevis est – Anger is brief insanity.
- Iter arma leges silent – In war the laws are silent.
