bandog

详细解释:n. 拴住的狗, 猛犬

详细解释：

ban.dog

n.（名词）
A dog, such as a mastiff, kept chained as a watchdog or because of its ferocious aggressiveness.
猛犬，门犬：用链子锁着作为看门狗或因其生性凶残而用链子锁着，如獒犬

来源：
Middle English band-dogge
中古英语 band-dogge
band [leash, chain] * see band
band [皮带，链条] *参见 band
dogge [dog] * see dog
dogge [狗] *参见 dog