-dom
/dəm/suffix
forming nouns ［构成名词］
1
- denoting a state or condition表示“状态”, “情形”：
freedom.
2
- denoting rank or status表示“等级”, “身份”：
earldom.
3
- denoting a domain表示“范围”, “领域”：
fiefdom.
4
- denoting a class of people or the attitudes associated with them, regarded collectively表示“一类人或其态度”的总称：
officialdom.
词源
Old English -dōm, originally meaning 'decree， judgement'.