PRIMER SEISIN, Eng. law. The right which the king had, when any of his tenants died seised of a knight's fee, to receive of the heir, provided he were of fall age, one whole year's profits of the lands, if they were in immediate possession; and half a year's profits, if the lands were in reversion, expectant on an estate for life. 2 Bl. Com. 66.

PRIMOGENITURE. The state of being first born the eldest. 2. Formerly primogeniture gave a title in cases of descent to the oldest son in preference to the other children; this unjust distinction has been geuerally abolished in the United States.

PRIMOGENITUS. The first born. 1 Ves. 290 and see 3 M. & S. 25; 8 Taunt. 468; 3 Vern. 660.

PRIMUM DECRETUM. In the courts of admiralty, this name is given to a provisional decree. Bac. Ab. The Court of Admiralty, E.

PRINCE. In a general sense, a sovereign the ruler of a nation or state. The son of a king or emperor, or the issue of a royal family; as, princes of the blood. The chief of any body of men.

2. By a clause inserted in policies of insurance, the insurer is liable for all losses occasioned by "arrest or detainment of all kings, princes, and people, of what nation, condition, or quality soever." 1 Bouv. Inst. n. 1218.

PRINCIPAL. This word has several meanings. It is used in opposition to accessary, to show the degree of crime committed by two persons; thus, we say, the principal is more guilty than the accessary after the fact.

2. In estates, principal is used as opposed to incident or accessory; as in the following rule: "the incident shall pass by the grant of the principal, but not the principal by the grant of the incident. Accessorium non ducit, sed sequitur suum principale." Co. Litt. 152, a.

3. It is used in opposition to agent, and in this sense it signifies that the principal is the prime mover.

4. It is used in opposition to interest; as, the principal being secured tho interest will follow.

5. It is lased also in opposition to surety; thus, we say the principal is answerable before the surety.

6. Principal is used also to denote the more important; as, the principal person.

7. In the English law, the chief person in some of the inns of chancery is called principal of the house. Principal is also used to designate the best of many things as, the best bed, the best table, and the like.