roundel
‘a circle, anything round’
Lexical development traced from the Tamil root:
E. rondeal, roundelle, rowndell, roundell < O.F. rondel, rondeaul ‘round dance; dance lyric; roundel’ < rond ‘round’ < (probably) redond < Vulgar Lat. retundus < Lat. rotundus ‘like a wheel, circular, round,’ related to rota ‘wheel’ < rawnd < ret- < Tamil uruḷ