A Latin term meaning "from what comes before". In legal arguments, a priori generally means that a particular idea is taken as a given.
A Latin term meaning "in the matter of".
A Latin term meaning "according to [the] value [of something]". The term is used in taxation to designate taxes levied against property, real or personal, at a certain rate based upon the property's value.
An ad valorem tax is levied according to the value of the property as determined by an assessment or appraisal. Assessment on a regular basis is a common characteristic of an ad valorem tax.
A Latin term meaning "by intestacy." The term refers to laws governing the succession of property after its previous owner dies without a valid will.