Ιvory

I knew already that ivory was "elephant tooth" or ελεφαντόδοντο. THere is apparently a synonym of Turkish origin, but parallel in the word's structure, elephant+tooth, fildisi. 
φίλντισι < τουρκική fildişi από fil(ελέφαντας) + diş(δόντι) + i(κτητική κατάληξη)