He felt a slight constriction in his throat after running.

constriction 是名词，来自动词 constrict（收缩、压缩），由前缀 con-（表示"共同、一起"）和词根 strict（来自拉丁语 stringere，意为"拉紧"）组成。constriction 指"收缩、紧缩"的感觉或状态。