Where does “eineindeutig” come from?

eineindeutig (German) comes from German eindeutig, from German -ig, from German -jährig, from German Jahr, from Middle High German jār, from Old High German jār, from Proto-West Germanic jār, from Proto-Germanic jērą — year.

eineindeutig (German): bijective, biunique

Definitions

  1. bijective, biunique

Ancestry of “eineindeutig”, step by step

eineindeutig traces back through two separate lines of ancestry.

via German eindeutig

StepLanguageWordMeaning
1Germaneindeutigunambiguous, unequivocal, explicit, unique;...
2German-ig-y; forms adjectives from nouns; forms adjectives...
3German-jährigyears old; years lasting
4GermanJahryear
5Middle High Germanjāryear
6Old High Germanjāryear
7Proto-West Germanicjāryear
8Proto-Germanicjērąyear; name of the J-rune
9Proto-Indo-Europeanyeh₁r-year

via German ein

StepLanguageWordMeaning
1Germaneinone; a, an; indicating motion into something
2Middle High Germaneinone
3Old High Germaneinone; only
4Proto-West Germanicainone
5Proto-Germanicainazone; some
6Proto-Indo-Europeanóynosone; single
Every word from Proto-Indo-European yeh₁r-Every word from German -igEvery word from Proto-Germanic jērą