名詞 custard:

1. sweetened mixture of milk and eggs baked or boiled or frozen

1. A dessert consisting of a mold of sponge cake or bread with a filling, as of fruits, whipped cream, or custard.
   水果奶油布丁一種甜點(diǎn)心，由松軟蛋糕或面包加夾心做成，如加水果、摜奶油或蛋奶沙司
2. The apple pie and custard are delicious.
   蘋果餅和軟凍的味道好極了。
3. Custard is a kind of sweet sauce.
   軟凍是一種甜食。

cus.tard

n.（名詞）
A dish consisting of milk, eggs, flavoring, and sometimes sugar, boiled or baked until set.
乳蛋糕：一種食品，用牛奶、雞蛋、調(diào)味品，有時(shí)再加糖混合而成，經(jīng)蒸煮或烘烤直至凝固而成

來源：
Middle English crustade, custard [a pie with a crust]
中古英語 crustade, custard [有外皮的圓餅]
probably from Old Provenôal croustado * see croustade
可能源自 古普羅旺斯語 croustado *參見 croustade

【引伸】
cus.tardy
adj.（形容詞）