v. & n.
--v.tr.
1. necessitate or involve unavoidably (the work entails much effort).
2 Law bequeath (property etc.) so that it remains within a family.
3 (usu. foll. by on) bestow (a thing) inalienably.
--n. Law 1 an entailed estate.
2 the succession to such an estate.
Derivatives:
entailment n.
Etymology: ME, f. EN-(1) + AF taile TAIL(2)