Where does “introductorius” come from?
introductorius (Latin) comes from Latin introductor, from Latin intrōdūcō, from Latin intrō, from Latin intra, from Latin interus, from Proto-Indo-European h₁énteros, from Proto-Indo-European -teros — Contrastive or oppositional adjectival suffix.
introductorius (Latin): introductory
Ancestry of “introductorius”, step by step