The corrugation, groove of something.
Aro chīdong no galba.
There are many corrugations to roofing sheet(s).
Pinonas dan babbaro chīdong no rarahan.
The young men covered the grooves of the road.
Someone or something (mapay-) makes something (pay--en) corrugated, grooved.
Mapaychīdong ka do tana tan mohan ta.
Make grooves in the soil so (it is a place) for us to plant.
Paychīdongen mo galbaya.
Make the roofing sheet(s) corrogated.