An estate in land or other real property, of uncertain duration; that is, either of inheritance or which may possibly last for tbe life of the tenant at the least, (as distinguished from a leasehold;) and held by a free tenure, (as distinguished from copy-hold or villelnage.) Nevitt v. woodburn, 175 111. 376, 51 N. E. 593; Railroad Co. v. Hemphill, 35 Miss. 22; Nellis v. Munson, 108 N. Y. 453, 15 N. E. 739; Jones v. Jones, 20 Ga. 700