Old English snel "quick, active," cognate with Old Saxon, Dutch, Old High German snel, German schnell "swift, quick," Old Danish snel "swift, fleet," Old Norse snjallr "eloquent, able, bold." It survived as a surname and in Scottish and northern English; used by Burns and Scott. Italian snello is from Germanic.
American geneticist. He shared a 1980 Nobel Prize for discoveries concerning cell structure that enhanced understanding of the immunological system, resulting in higher success rates in organ transplantation.