pīwaiwai
1. (verb) (-a,-hia) to dig over, glean, harvest (root crops).
Ka mate au i te whakamā i te kai kore o te oneone, i te tuaruatanga ki te pīwaiwai, pīwai atu, pīwai atu (TWT 1/6/1858:2). / I am overcome with embarrassment because of the lack of food crops and from having to dig over the ground a second time to glean food from here and there.
2. (noun) small kūmara overlooked in lifting the crop.