さかのぼる

I

さかのぼる【逆上る】

(oK) (v5r,vi) to go back; to go upstream; to make retroactive

II

さかのぼる【遡る】

(v5r,vi) to go back; to go upstream; to make retroactive; (P)

III

さかのぼる【溯る】

(v5r,vi) to go back; to go upstream; to make retroactive