chorister
/ˈkɒrɪstə(r)/noun
1
- a member of a choir, especially a child or young person singing the treble part in a church choir唱诗班歌手（尤指教堂唱诗班中演唱高音部的孩童或青年）。
2
- US a person who leads the singing of a church choir or congregation〈美〉唱诗班领唱; 教堂会众领唱。
词源
late Middle English queristre, from an Anglo-Norman French variant of Old French cueriste, from quer （see CHOIR）. The change in the first syllable in the 16th cent. was due to association with obsolete chorist 'member of a choir or chorus'， but the older form quirister long survived.