This term is used in England, technically, to signify those conveyances made by a tenant of his leasehold, which do not occasion a forfeiture these are conveyances by lease and release, bargain and sale, and a covenant to stand seised by a tenant for life. 2. In this country forfeitures for alienation of a greater right than the tenant possesses, are almost unknown. The more just principle prevails that the conveyance by the tenant, whatever be its form, operates only on his interest. Vide Forfeiture,