Thesaurus, Thesaurium
Defined in 1 dictionary — Black's (1910)
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
The treasury; a treasure.
— Thesaurus absconditus. In old English law. Treasure hidden or buried. Spelman.
— Thesaurus inventus. In old English law. Treasure found; treasure-trove. Bract fols. 119b, 122.