A more thorough explanation:

Definition: Cessor refers to a tenant who fails to pay rent or perform prescribed services, which gives the landowner the right to recover possession of the land. It can also refer to the termination of a right or interest.

Example: A landlord can evict a cessor tenant who has not paid rent for several months.

Explanation: If a tenant fails to pay rent or perform the services agreed upon in the lease agreement, they become a cessor. This means that the landlord has the right to take back possession of the property. In the example given, the landlord can evict the tenant who has not paid rent for several months.

Example: A proviso of cesser is usually annexed to long terms, raised by mortgage, marriage settlement, or annuity, whereby the term is declared to be determinable on the happening of a certain event.

Explanation: This example illustrates how cesser can refer to the termination of a right or interest. In this case, a proviso of cesser is added to long terms, such as those raised by mortgage, marriage settlement, or annuity. This proviso declares that the term is determinable on the happening of a certain event. For example, if the term was created to secure an annuity, the term would cease on the death of the annuitant.