Demons
Deut 32:17
They sacrificed to demons, not to God, To gods they did not know,
To new gods, new arrivals That your fathers did not fear.
NKJV
shed (shade); from OT:7736; a doemon (as malignant):
Matt 13:39
The enemy who sowed them is the devil, the harvest is the end of the age, and the reapers are the angels.
NKJV
diabolos (dee-ab'-ol-os); from NT:1225; a traducer; specially, Satan
Matt 12:27
And if I cast out demons by Beelzebub, by whom do your sons cast them out? Therefore they shall be your judges.
NKJV
Beelzeboul (beh-el-zeb-ool'); of Aramaic origin [by parody on OT:1176]; dung-god; Beelzebul, a name of Satan:
Luke 4:33
Now in the synagogue there was a man who had a spirit of an unclean demon. And he cried out with a loud voice,
. . .
NKJV
daimonion (dahee-mon'-ee-on); neuter of a derivative of NT:1142; a daemonic being; by extension a deity:
NT:1142;
daimon (dah'-ee-mown); from daio (to distribute fortunes); a daemon or supernatural spirit (of a bad nature)
Rev 12:7-8
And war broke out in heaven: Michael and his angels fought with the dragon; and the dragon and his angels fought, 8 but they did
not prevail, nor was a place found for them in heaven any longer. 9 So the great dragon was cast out, that serpent of old, called
the Devil and Satan, who deceives the whole world; he was cast to the earth, and his angels were cast out with him.
NKJV
Demons by tradition are viewed as the fallen angles that were cast down with Satan.