词根：vestig = footprint’track, 表示“脚印, 踪迹”

vestige n. 痕迹；残余

investigate v. 调查，侦察（in进入+vestig+ate→根据踪迹调查→调查）

词根词缀：vestig-, vestigi-

【来源及含义】Latin: footprint; track, tracking, to track, to trace

【同源单词】investigable, investigate, investigation, investigational, investigative, investigative journalism