Definitions from Black's Law Dictionary: 2nd Edition and Ballentine's Law Dictionary as are available for each term in each dictionary.
  • Ballentine's Law Dictionary

    Lapse of time. Efforce. To force.

  • Black's Law Dictionary: 2nd Edition

    When this phrase is used in leases, conveyances, and other like deeds or in agreements expressed in simple writing, it indicates the conclusion or expiration of an agreed term of years specified in the deed or writing, such conclusion or expiration arising in the natural course of events, in contradistinction to the determination of the term by the acts of the parties or by some unexpected or unusual incident or other sudden event Brown.