Meanings of hourly dread in English

So much had the slipper of Mohammed done for me: I went in hourly dread of murderous attack!

Those who escaped to the shore were in hourly dread of an attack from the inhabitants of the country.

As for the runaways, they spent a long honeymoon in concealment and hourly dread of the fate that hung over them.

Along the Ohio people lived in hourly dread of tomahawk and scalping knife; the attacks fell unceasingly on all the settlements from Marietta to Louisville.

In his book we find nothing of the fanatic who ordered the Irish massacres, nothing of the neuropath who lived in hourly dread of assassination.