Dictionary
Mahalath Maschil
In the title of Ps. 53, denoting that this was a didactic psalm, to be sung to the accompaniment of the lute or guitar. Others regard this word "mahalath" as the name simply of an old air to which the psalm was to be sung. Others, again, take the word as meaning "sickness," and regard it as alluding to the contents of the psalm.
Dictionary
Chemarim
Black, (Zeph. 1:4; rendered "idolatrous priests" in 2 Kings 23:5, and "priests" in Hos. 10:5). Some derive this word from the Assyrian Kamaru, meaning "to throw down," and interpret it as describing the idolatrous priests who prostrate themselves before the idols. Others regard it as meaning "those who go about in black," or "ascetics."
Dictionary
Cherethim
(Ezek. 25:16), more frequently Cherethites, the inhabitants of Southern Philistia, the Philistines (Zeph. 2:5). The Cherethites and the Pelethites were David's life-guards (1 Sam. 30:14; 2 Sam. 8:18; 20:7, 23; 23:23). This name is by some interpreted as meaning "Cretans," and by others "executioners," who were ready to execute the king's sentence of death (Gen. 37:36, marg.; 1 Kings 2:25).