To imply or require.
This activity will entail careful attention to detail.
To settle or fix inalienably on a person or thing, or on a person and his descendants or a certain line of descendants; -- said especially of an estate; to bestow as a heritage.
To appoint hereditary possessor.
To cut or carve in an ornamental way.
That which is entailed. Hence:
Delicately carved ornamental work; intaglio.