Definition of "tacking"

tacking

verb
1. present participle and gerund of tack
noun
countable and uncountable, plural tackings
1. (sewing) Loose temporary stitches in dressmaking etc.
2. (nautical) The act of changing tack.
3. (law) A union of securities given at different times, all of which must be redeemed before an intermediate purchaser can interpose a claim.
  Quotations
  The English doctrine of tacking was first solemnly established in Marsh v . Lee , under the assistance of Sir Matthew Hale , who compared the operation to a plank in shipwreck gained by the last mortgagee
  1826, James Kent, Commentaries on American Law
4. (law) The joining together of consecutive periods of possession of property, especially between squatters in cases of adverse possession.