hereditament

HEREDIT'AMENT, n. [L. haeres, haeredium. See Heir.]

Any species of property that may be inherited; lands, tenements,any thing corporeal or incorporeal, real, personal or mixed, that may descend to an heir.

A corporeal hereditament is visible and tangible; an incorporeal hereditament is an ideal right, existing in contemplation of law, issuing out of substantial corporeal property.