In old English law. A purchaser; one who first acquired an estate to his family; one who acquired an estate by sale, by gift, or by any other method, except only that of descent 2 Bl. Comm. 220.

• THEORY OF ADAPTIVE EXPECTATIONS
• THEORY OF CASE
• THEORY OF CONSTRAINTS
• THEORY OF PROBABILITY
• THEORY OF RATIONAL EXPECTATIONS
• THEORY OF THE FIRM
• THEORY OF THE FIRST BEST
• THEORY OF THE SECOND BEST
• THEORY OF THE THIRD BEST
• THEORY X AND THEORY Y
• THEORY Z
• THEOWES, THEOWMEN, or THEWS
• THERAPEUTIC ALTERNATIVES
• THERAPEUTIC EQUIVALENCE
• THERBLIG
• THEREUPON
• THERM
• THERMAL POLLUTION
• THERMODYNAMICS
• THERMOPLASTICS
• THERMOSETS
• THERMOSTAT
• THESAURER
• THESAURUS, THESAURIUM
• THESMOTHETE