My father has worked his whole life and plans to retire next year.

retire 是动词，由前缀 re-（表示"回、向后"）和词根 tire（来自古法语，意为"拉、撤回"）组成，字面意思是"撤回、退下"。在现代英语中特指"退休"，即从工作岗位退下来。