An expression of regret over something of value that was lost, destroyed, spilled, or wasted. It is regretful.
should not be confused with mangbayo 'to forbid'
Mangbayowayaw kwarta kwaw a nabo.
It is regretful about my money that was lost.
Tabtaban mwabaw tapyaya, ta mangbayo.
Don't chop at those boards, because it is regretful (that it will be wasted).