ˈȯnˌslȯt, ˈän-, usu -ȯd.+V noun
( -s )
Etymology: alteration (influenced by English on and obsolete English slaught slaughter, from Middle English, from Old English sleaht ) of earlier anslaight, modification of Dutch aanslag act of striking, from Middle Dutch aenslach act of striking, attack, from aen on, at + slach blow, stroke; akin to Old English an, on on and to Old English slēan to strike, beat — more at on , slay , slaughter
: an especially fierce attack
the tremendous onslaught across the Rhine — Sir Winston Churchill
an onslaught of disease
less resilient under his wife's verbal onslaughts — D.G.Gerhaty