motuutuu moua, mouß

m˘u,  s. the coarse sword grass, of which there are several species, as m˘u haari, m˘u raupo, mˇu rau hahae, mˇu rarotaa. [Dav : 4760] (note)
mou,  v.n. to be consumed; to fail, vanish, or be done away; see haamou. [Dav : 4761]
mou,  pn. s. s'Úteindre, anÚantir; herbe Ó fil; mouraa, anÚantissement. [Jau :2258]