an·ga·ri·a 
(ăng-gârē-ə)
(ăng-gârē-ə)n.
1. See angary.
2. The compulsory maintenance of horses and couriers for use by the imperial postal service, required of local administrators under Roman law.
3. Service demanded by a feudal lord in excess of custom or law.
[Latin, compulsory service related to the imperial postal service; see ANGARY.]