KJV Dictionary Definition: slumber
1. To sleep lightly; to doze. He that keepth Israel shall neither slumber nor sleep. Ps. 121.
2. To sleep. Slumber is used as synonymous with sleep, particularly in the poetic and eloquent style.
3. To be in a state of negligence, sloth, supineness or inactivity. Why slumbers Pope?
SLUM'BERER, n. One that slumbers.
SLUM'BERING, ppr. Dozing; sleeping.
SLUM'BEROUS, SLUM'BERY, a.
1. Inviting or causing sleep; soporiferous. While pensive in the slumberous shade
2. Sleep; not waking.