מַחֲלַת machălath (H4257)

'Machalath', probably the title (initial word) of a popular song

1) Mahalath 1a) found in headings of Ps 53:1 and Ps 81:1 1a1) meaning dubious, probably a catchword in a song giving name to tune

from חָלָה (H2470); sickness;