Where does “Einführungsjahr” come from?

Einführungsjahr (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.

Einführungsjahr (German): year of introduction; founded

Definitions

  1. year of introduction; founded

Ancestry of “Einführungsjahr”, step by step

Einführungsjahr traces back through two separate lines of ancestry.

via German Einführung

StepLanguageWordMeaning
1GermanEinführungintroduction
2Germaneinführento introduce, to begin; to insert; to import
3Latinintrōdūcere
4Latinintrōdūcōto lead in: to conduct into
5Latinintrōto enter, go into, come in, get in, penetrate
6Latinintrawithin; inside; during; less than
7Latininterus
8Proto-Indo-Europeanh₁énterosinside, within
9Proto-Indo-European-terosContrastive or oppositional adjectival suffix

via German jahr

StepLanguageWordMeaning
1Germanjahryear solar year, the time it takes the Earth to complete one orbit of the Sun
2German-jährigyears old; years lasting
3German-ig-y; forms adjectives from nouns; forms adjectives...
4Middle High German-ic
5Old High German-ig
6Proto-West Germanic-gForms adjectives from nouns and verbs with a...
7Proto-Germanic-gaz-y
8Proto-Indo-European-ḱos-y, -ic
Every word from Proto-Indo-European -terosEvery word from Proto-Indo-European h₁énterosEvery word from Latin interus