Only two other words that can be made from those letters: hm and my.
my best guess is because they are represented from critical revaluations of state northern.
a hymn is a religious song
'How lovely on the mountains are the feet of him who brings good news, good news. Announcing peace, proclaiming news of happiness, Our God reigns, our God reigns.' Chorus, 'Our God...
It's old negro slang for" come by here, my Lord, come by here".