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Webster 1913 Edition
Onslaught
1.
An attack; an onset; esp., a furious or murderous attack or assault.
By storm and
onslaught
to proceed. Hudibras.
2.
A bloody fray or battle.
[Scot.]
Jamieson.
Webster 1828 Edition
Onslaught
ONSLAUGHT
,Noun.