appoggiatura
Concise Oxford English Dictionary © 2008 Oxford University Press:
appoggiatura /əˌpɒdʒəˈtjʊərə/
▶noun (pl. appoggiaturas or appoggiature) Music a grace note which delays the next note of the melody, taking half or more of its written time value.
– origin Ital., from appoggiare ‘lean upon, rest’.
'appoggiatura' also found in these Oxford entries:

