decile / decyl / desyl [ˈdɛsəl]
decile – n. – Statistics any of 9 values of a random variable which divide a frequency distribution into 10 groups each containing 1/10th of the total population
decyl – n. – Chemistry any of numerous univalent radicals, C10H21, derived from the decanes by removal of one hydrogen atom, especially the normal radical CH3(CH2)8CH2
desyl – n. – Chemistry a univalent radical, C6H5COCH(C6H5) derived from desoxybenzoin by removal of one hydrogen atom from the methylene group; alpha-phenyl-phenacyl