ritornello
Concise Oxford English Dictionary © 2008 Oxford University Press:
ritornello /ˌrɪtɔːˈnɛləʊ/
▶noun (pl. ritornellos or ritornelli /-li/) Music a short instrumental refrain or interlude in a vocal work.
– origin Ital., dimin. of ritorno ‘return’.
'ritornello' also found in these Oxford entries:

