ignorantia facti excusat; ignorantia juris non excusat : ignorance of fact excuses;ignorance of law does not excuse.
impossibilium nulla obligatio est : there is no obligation to do impossibIe things.
in esse : in existence.
in forma pauperis : in the character of a pauper.
in limine : at the outset.
in pari delicto : where both parties are equally in fault ; in equal fault.
in pari materia (in pari causa) : in an analogous cause, case or position.
in personam : an act or proceeding done or directed against or with reference to a specific person.
in rem : an act or proceeding done or directed with reference to no specific person or with reference to all whom it might concern.
injuria sine damno : injury without damage; an infringement of a right; without causing damage.
intelligible differentia : difference capable of being understood; a
factor that distinguishes one in different state or class from
another which is capable of being understood.
inter alia : amongst other things.
intravires: within the powers; within the authority given by law.
ipso jure : By the law; itself.