.CE    NIAO :Gunwale of canoe, rim, edge (of tool): *ni(i)ao

HAW    Niiao. :Edge, as of a canoe; groove; rima, as of a bowl; sharp edge of a knife blade (Pki)
OJA    9iao. :Adze for trimming canoe hull (Smd)
MAO    Niao. :Gunwale, rim, edge (of tool) (Wms)