Etymology

From Proto-Germanic *ferudi ‎(“last year”), from Proto-Indo-European *peruti ‎(“on the other side of a year”). Related to obsolete German fert ‎(“last year”). Cognates include Sanskrit परुत् ‎(parut, “last year”), Persian ﭙار ‎(pār, “last year”), Ancient Greek πέρυσι ‎(pérusi, “last year”), Lithuanian pernai ‎(“last year”), Old Armenian հերու ‎(heru, “last year”) and Old English fyrn.