From Spanish asiento (“seat, contract or agreement”), from asentar (“to place on a chair, to adjust, to make an agreement”), from a- + sentar (“a participial verb”), from Latin ad + *sedentare (“to cause to sit”), from sedens, sedentis.
- (historical) A contract or convention between Spain and other powers for furnishing Negro slaves for the Spanish dominions in America, especially the contract made with Great Britain in 1713.
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for assiento in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.)