syllabic vs syllabicity

syllabic is not a noun while syllabicity is a noun.

Word	Noun	Adjective	Verb	Adverb
syllabic	No	Yes	No	No
syllabicity	Yes	No	No	No

syllabic (noun)	syllabicity (noun)
	the pattern of syllable formation in a particular language

syllabic (adjective)	syllabicity (adjective)
consisting of a syllable or syllables
(of verse) having lines based on number of syllables rather than on rhythmical arrangement of stresses or quantities
(of speech sounds) forming the nucleus of a syllable
consisting of or using a syllabary
of or relating to syllables