Someone or an animal's breathing (om-) becomes labored as if the breathing bounces up and down.
om- melsalsad, omin- minelsalsad
Melsalsad kaynaynawa no bago, ta magal-al.
The pig's breathing becomes labored, because it has asthma.
Minelsalsad kaanganges ni ākang, ta nahopag a nayyayo.
Older sibling's breathing became labored, because he was tired from running.