major premiss vs major premise

major premiss and major premise both are nouns.

Word	Noun	Adjective	Verb	Adverb
major premiss	Yes	No	No	No
major premise	Yes	No	No	No

As nouns, major premiss and major premise are synonyms defined as:

major premiss and major premise: the premise of a syllogism that contains the major term (which is the predicate of the conclusion)

major premiss (noun)	major premise (noun)
the premise of a syllogism that contains the major term (which is the predicate of the conclusion)	the premise of a syllogism that contains the major term (which is the predicate of the conclusion)