sapiay noun English. Large mat made by threading thin rattan strips through horizontal holes in thick rattan slats. Usu. used as a general floor covering over bamboo and palmwood floors. Example sentence: Subanen. Melengas una mu belatayi sapiay kiin, dekag mu ikamay, pu' mekeliang gupiai saleg kiin. English. It will be good if you put that rattan mat down first, before you spread out the sleeping mats, because the slats of the floor are far apart. Synonym. beledas