introductoriness vs precedence

introductoriness and precedence both are nouns.

Word	Noun	Adjective	Verb	Adverb
introductoriness	Yes	No	No	No
precedence	Yes	No	No	No

As nouns, precedence is a hypernym of introductoriness; that is, precedence is a word with a broader meaning than introductoriness:

introductoriness: The quality of being introducing; of giving a preview or idea of.
precedence: preceding in time

Other hypernyms of introductoriness include antecedence, antecedency, anteriority, precedency, priority.

introductoriness (noun)	precedence (noun)
The quality of being introducing; of giving a preview or idea of.	the act of preceding in time or order or rank (as in a ceremony)
	preceding in time
	status established in order of importance or urgency