First, the terms are not any more adjective than those discussed earlier. For 'green' a comparison is made to the colour of cassava leaves. Even the word 'colour' is borrowed from French in the construction. For 'blue', the word bule (< FR bleu) is used. It is the same word that is used for a blue dye sold during the colonial period to dye police uniforms after washing them. The basic colour terms are mpembe 'white', ndombe 'black', and mbwaki 'red'. They are all used with the connective ya when modifying a head noun.