anacrusis
/ˌænəˈkruːsɪs/noun
(pl. anacruses /-siːz/)
1
- Prosody one or more unstressed syllables at the beginning of a verse【诗韵】句首非重读音节。
2
- Music one or more unstressed notes before the first bar line of a piece or passage【乐】弱起音。
词源
mid 19th cent.: modern Latin， from Greek anakrousis 'prelude'， from ana- 'up' + krousis, from krouein 'to strike'.