Per alluvionem
Defined in 2 dictionaries — Ballentine's (1916), Black's (1910)
Ballentine's Law Dictionary
James A. Ballentine · 1916
By alluvion. See Alluvion.
Black's Law Dictionary
Henry Campbell Black, M.A. · 1910
Lat.
In the civil law. By alluvion or the gradual and imperceptible increase arising from deposit by water.