D defs.my
Entry 1 sense Webster, 1913

Heriot

· Her·i·ot · IPA /ˈhɛɹɪət/
01 n. Formerly, a payment or tribute of arms or military accouterments, or the best beast, or chattel, due to the lord on the death of a tenant; …
  1. 1.
    Formerly, a payment or tribute of arms or military accouterments, or the best beast, or chattel, due to the lord on the death of a tenant; in modern use, a customary tribute of goods or chattels to the lord of the fee, paid on the decease of a tenant.(Eng. Law)
Phrases & compounds
Heriot custom — a heriot depending on usage.
Heriot service — a heriot due by reservation in a grant or lease of lands.