bane
/beɪn/noun
usu. in sing.
1- a cause of great distress or annoyance祸根, 灾星：
the telephone was the bane of my life.
电话是我生活的灾难。
1.1
- archaic something, typically poison, which causes death〈古〉（致命的）毒物。
派生词
baneful
adjective （archaic 〈古〉）词源
Old English bana 'thing causing death， poison'， of Germanic origin.