1. 老年记忆衰退：DOT 职业分类典 | dotage 老年记忆衰退 | dote 昏愦

2. 老朽：dot-matrix printer 点阵打印机 | dotage 老朽 | dotal 嫁妆的

3. 衰老：dot 小点 | dotage 衰老 | double blind technique 双盲检法

4. 痴爱：Cursory of meeting匆匆一瞥 | Dotage痴爱 | Spoony痴情

1. 年老体衰;年老昏聩
    If someone is in their dotage, they are very old and becoming weak.

dotage是什么意思

    e.g. Even in his dotage, the Professor still sits on the committee.
           即便上了年纪，教授仍然是委员会的一员。
    e.g. ...spending his dotage in a riverside cottage.
           在河畔小屋中度过他的晚年

1. mental infirmity as a consequence of old age
    sometimes shown by foolish infatuations

    Synonym: second childhoodsenility