kwagĩrĩthia

v.

1. to improve quality. To improve quality. To enhance or increase the quality, standard, or characteristics of agricultural products or livestock; to make better or more desirable.

Example: Hihi ingĩka atĩa nĩguo hote kũongerera magetha na kwagĩrithia mũcamo wa kahũa? (How to increase coffee yield and Quality?); Kũnyihia njamuthi iria irĩ irio-inĩ ona indo-inĩ cia gũthondeka irio, kwagĩrithia mũthĩĩre wa irio, na gũteithia gũcokereria tũgũnyũ tũrĩa tũrĩ ũguni mwĩrĩ-inĩ na njĩra ya kũongerera indo irĩ na ũg... (Reducing the microbial load of feed and raw materials, improving digestive function, and restoring healthy populations of gut bacteria can all be accomplished with high-quality additives.); Thutha ũcio ngũkũ ici nĩireragwo na njĩra ya kwagĩrithia maũthĩ maya. (The chickens are then reared in a way that makes these characteristics even better.)