Mahalath @ a lute; lyre. (1.) The daughter of Ishmael, and third wife of Esau Genesis:28:9); called also Bashemath Genesis:36:3). (2.) The daughter of Jerimoth, who was one of David's sons. She was one of Rehoboam's wives ( 2Chronicals:11:18).
Mahalath Leannoth Maschil @ This word leannoth seems to point to some kind of instrument unknown Psalms:88, title). The whole phrase has by others been rendered, "On the sickness of affliction: a lesson;" or, "Concerning afflictive sickness: a didactic psalm."
Mahalath Maschil @ in the title of Psalms: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.