(1):
(n.) The act of overwhelming.
(2):
(v. t.) To cover over completely, as by a great wave; to overflow and bury beneath; to ingulf; hence, figuratively, to immerse and bear down; to overpower; to crush; to bury; to oppress, etc., overpoweringly.
(3):
(v. t.) To project or impend over threateningly.
(4):
(v. t.) To cause to surround, to cover.