Given an English vocabulary word, define it in 1 to 2 sentences.
Abrogate
Abrogate means to abolish, repeal, or put an end to a formal agreement, law or system. It can refer to the official revocation of something by an authority, such as a government or legislative body.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given an English vocabulary word, define it in 1 to 2 sentences.

### Input:
Abrogate

### Output:
Abrogate means to abolish, repeal, or put an end to a formal agreement, law or system. It can refer to the official revocation of something by an authority, such as a government or legislative body.