Tacking

The uniting securities given at different times, so as to prevent any intermediate purchaser from claiming a title to redeem or otherwise diseharge one lien, which is prior, without redeeming or discharging the other liens also, which are subsequent to ais own title.

1 Story, Eq. Jur. § 412.

The term is particularly applied to the action of a third mortgagee who, by buying the first lien and uniting it to his own, gets priority over the second mortgagee. The term is also applied to the process of making out title to land by adverse possession, when the present occupant and claimant has not been in possession for the full statutory period, but adds or "tacks" to his own possession that of previous occupants under whom he claims.

See J. B. Streeter Co. v. Fredrickson, 11 N. D. 300, 91 N. W. 692.