ded'ly.

That may occasion death; mortal; fatal; destructive; as a deadly blow or wound.

Mortal; implacable; aiming to kill or destroy; as a deadly enemy; deadly malice a deadly feud.

ded’ly. In a manner resembling death; as deadly pale or wan.

Mortally. With groanings of a deadly wounded man. Ezekiel 30:24.

Implacably; destructively.

In a vulgar or ludicrous sense, very; extremely; as a deadly cunning man.