default  n.1.违约，拖欠 2.弃权 3.（计算机）预设（值），缺省，默认
         vi.不履行义务，拖欠

由fall,fel,fals,fault 演化而来的英文单词≈to fail（未做，未做成）,to deceive（欺骗）,to lead into error（出错）

default = de-(=fully表示加强) + fault(=to fail未做)→ 该做某事而未做某事→

n.1.违约，拖欠

2.弃权,不用做某事→

3.（计算机）预设（值），缺省，默认

The committee will not meet in default of a chairman.

没有主席委员会就不开会。

词形变化

名词: defaulter 动词过去式: defaulted
动词过去分词: defaulted 动词现在分词: defaulting
动词第三人称单数: defaults

英英解释
名词 default:

loss due to not showing up

act of failing to meet a financial obligation

同义词：nonpayment, nonremittal
loss resulting from failure of a debt to be paid

同义词：nonpayment, nonremittal
an option that is selected automatically unless an alternative is specified

同义词：default option
动词 default:
fail to pay up同义词：default on