ngilu 1adj Sour. Du-on ogkako-on ta no maporos unawa to ibò, mangilu ko ogpakakagat ki. There is something we eat that is astringent like the ibò fruit, it is sour when we bite it. 2v To have one's teeth be on edge as from a scraping sound. Mangilu ko ogpakakagat ki woy ogpakapiyong ki to kangilu lagboy to ngipon ta. It is sour when we bite it and we have to shut our eyes in that it very much sets our teeth on edge. 3vs Of a grating sound that sets one's teeth on edge. Ko du-on ka ogkagis to bulu to mo-irob, lagboy no mangilu to pogdinog ta. If someone scrapes bamboo with a large knife (bolo), the sound very much sets our teeth on edge (lit. very sour). 4adj A kind of pain.