Keywords: yesteryear, last year
As a Noun
1. The year before this year; last year; yesteryear.
2. The year before a given or particular other year; the previous year.
1. Used at the beginning of a sentence or next to a verb to mean the action in that sentence took place one year before the current year, or one year before the year being talked about. English = last year, the previous year, the year before that.