Where does “nonintroductory” come from?
nonintroductory (English) comes from English introductory, from Late Latin introductorius, from Latin introductus, from Latin intrōdūcō, from Latin intrō, from Latin intra, from Latin interus, from Proto-Indo-European h₁énteros — Contrastive or oppositional adjectival suffix.
nonintroductory (English): Not introductory
Ancestry of “nonintroductory”, step by step