isolate
iso.late \'i--s*-.la-t, 'is-*-\ vb [back-formation fr. isolated set apart, fr. F isole`, fr. It is]olato, fr. isola island, fr. L insula 1: to set apart from others; also : QUARANTINE 2: to select from among others; esp : to separate from another sub stance so as to obtain pure or in a free state 3: INSULATE : to cause something to be isolated