What is Amparo?

Legal Definition
In Spanish-American law. A document issued to a claimant of land as a protection to him, until a survey can be ordered, and the title of possession issued by an authorized commissioner. Trimble v. Smither's Admit, 1 Tex. 790.
-- Black's Law Dictionary
Legal Definition
A sort of temporary patent to protect a claimant of land pending issue of title papers. See 1 Tex. 790.
-- Ballentine's Law Dictionary