one-year-old · one-year-long; lasting one year · annual
köken: Etymology tree Proto-Indo-European *ís? Proto-Indo-European *h₁óynosder. Proto-Balto-Slavic *edīˀnas Proto-Slavic *edìnъ Old Polish jeden Polish jeden Polish -o- Polish roczny Polish jednoroczny From jeden + -o- + roczny.