English: valuation year
Welsh: blwyddyn brisio
Subject: Cyllid ac ystadegau
Welsh definition: Y flwyddyn y cynhelir prisiad at ddibenion y dreth gyngor neu ardrethi.
English context: [...] increasing the frequency of revaluations to three-yearly, and a power for the Welsh Ministers to amend the valuation year and interval between valuation years through regulations;
Plural: blynyddoedd prisio
Notes: Mae'r termau revaluation year / blwyddyn ailbrisio yn gyfystyr.