syncategoreme vs syncategorem

syncategoreme and syncategorem both are nouns.

Word	Noun	Adjective	Verb	Adverb
syncategoreme	Yes	No	No	No
syncategorem	Yes	No	No	No

As nouns, syncategoreme and syncategorem are synonyms defined as:

syncategoreme and syncategorem: a syncategorematic expression; a word that cannot be used alone as a term in a logical proposition

syncategoreme (noun)	syncategorem (noun)
a syncategorematic expression; a word that cannot be used alone as a term in a logical proposition	a syncategorematic expression; a word that cannot be used alone as a term in a logical proposition