occlude
v.
1590s, from Latin occludere (past participle occlusus) "shut up, close up," from ob "against, up" (see ob-) + claudere "to shut, close" (see close, v.). Of teeth, 1888 (also see occlusion). Related: Occluded; occluding.
〔蒋〕[oc=against，clud关闭；“关闭起来，不让通过”] 使堵塞，使闭塞
〔李〕[oc-(ob-)=against对抗；clud=to shut关闭；-e→“to shut against going through关住不让通过”→] v. stop up, or obstruct堵塞；闭塞