praecludunt
Praecludunt is a Latin verb form meaning “they prevent” or “they close off.” It is the third-person plural present indicative active of praecludere, a verb meaning to shut off, block, or preclude. The prefix prae- intensifies the sense of preceding or foreclosing, and claudere means “to shut.”
Grammatical notes and principal parts: praecludere belongs to the second conjugation (with the present infinitive ending
Usage and nuance: praecludunt is used in both literal and figurative contexts to describe preventing access,
Examples: Hostes portas praecludunt. (“The enemies block the gates.”) Leges novas vias praeeunt, et consilia eorum
See also: praecludere, the base form; praeclusus, the supine/participle forms useful for related constructions.