Lineal

That which comes in a line; especially a direct line, as from father to son. Collateral relationship is not called "lineal," though the expression "collateral line," is not unusual.

— Lineal consanguinity. That kind of consanguinity which subsists between persons of Whom one is descended in a direct line from the other; as between a particular person and his father, grandfather, great-grandfather, and so upward, in the direct ascending line; or between the same person and hls son, grandson, great-grandson, and so downwards in the direct descending line. 2 Bl. Comm. 203; Willis Coal & Min. Co., v. Grizzell, 198 111. 313, 65 N. E. 74.

— Lineal descent. See Descent.

— Lineal warranty. A warranty by an ancestor from whom the title did or might have come to the heir. 2 Bl. Comm. 301; Rawle, Co.v. 30.