Premiss

prem·ise  (prms)

n. also prem·iss (prms)

1. A proposition upon which an argument is based or from which a conclusion is drawn.

2. Logic

a. One of the propositions in a deductive argument.

b. Either the major or the minor proposition of a syllogism, from which the conclusion is drawn.

3. premises Law The preliminary or explanatory statements or facts of a document, as in a deed.

4. premises

a. Land and the buildings on it.

b. A building or part of a building.

v. prem·ised, prem·is·ing, prem·is·es

v.tr.

1. To state in advance as an introduction or explanation.

2. To state or assume as a proposition in an argument.

v.intr.

To make a premise.

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[Middle English premisse, from Old French, from Medieval Latin praemissa (propositi), (the proposition) put before, premise, from Latin, feminine past participle of praemittere, to set in front : prae-, pre- + mittere, to send.]

Word History: Why do we call a single building the premises? To answer this question, we must go back to the Middle Ages. But first, let it be noted that premises comes from the past participle praemissa, which is both a feminine singular and a neuter plural form of the Latin verb praemittere, "to send in advance, utter by way of preface, place in front, prefix." In Medieval Latin the feminine form praemissa was used as a term in logic, for which we still use the term premise descended from the Medieval Latin word (first recorded in a work composed before 1380). Medieval Latin praemissa in the plural meant "things mentioned before" and was used in legal documents, almost always in the plural, a use that was followed in Old French and Middle English, both of which borrowed the word from Latin. A more specific legal sense in Middle English, "that property, collectively, which is specified in the beginning of a legal document and which is conveyed, as by grant," was also always in the plural in Middle English and later Modern English. And so it remained when this sense was extended to mean "a house or building with its grounds or appurtenances," a usage first recorded before 1730.

Thesaurus

Noun	1.	premiss - a statement that is assumed to be true and from which a conclusion can be drawn; "on the assumption that he has been injured we can infer that he will not to play" assumption, premise posit, postulate - (logic) a proposition that is accepted as true in order to provide a basis for logical reasoning major premise, major premiss - the premise of a syllogism that contains the major term (which is the predicate of the conclusion) minor premise, minor premiss, subsumption - the premise of a syllogism that contains the minor term (which is the subject of the conclusion) thesis - an unproved statement put forward as a premise in an argument precondition, stipulation, condition - an assumption on which rests the validity or effect of something else scenario - a postulated sequence of possible events; "planners developed several scenarios in case of an attack"
Verb	1.	premiss - take something as preexisting and given premise presuppose, suppose - take for granted or as a given; suppose beforehand; "I presuppose that you have done your work"