Where does “Einführungsleitfaden” come from?
Einführungsleitfaden (German) comes from German Einführung, from German einführen, from Latin intrōdūcere, from Latin intrōdūcō, from Latin intrō, from Latin intra, from Latin interus, from Proto-Indo-European h₁énteros — Contrastive or oppositional adjectival suffix.
Einführungsleitfaden (German): introductory guide
Ancestry of “Einführungsleitfaden”, step by step