Lineal
Dictionary of Terms and Phrases Used in American or English Jurisprudence · Benjamin Vaughan Abbott · 1879
Dictionary of Terms and Phrases Used in American or English Jurisprudence
Is used in the law of descent more narrowly than line; it implies direct course; immediate descent. Collateral relationship is not called lineal, though the expression collateral line is not unusual.
Iiineal consanguinity
That relationship which subsists between persons each of whom is descended in a direct line from another, as between son, father, grandfather, great-grandfather, and so upwards in the direct ascending line, or downwards in the direct descending line.
Lineal descent
Descent in a right Hue, as where an estate descends from ancestor to heir in one line of succession, through father and son, successively.
Lineal 'warranty
A warranty where the heir derived, or might by possibility have derived, his title to the land warranted, either from or through the ancestor who made the warranty; as where a father, or an elder son in the life of the father, released to the disseisor of either themselves or the grandfather, with warranty, this was lineal to the younger son. It was abolished by Stat. 3 & 4 Wm. IV. ch.
74, § 14. Wharton.