To make widely known; to publish or disclose something publicly; to divulge.
From Latin divulgatus (published, made public), from divulgare (to make public). Related to vulgar (of the common people).
The root 'vulgus' means 'common people,' so 'divulgate' literally means to spread information among common folk—it's why we say 'vulgar' for common or base, and it reveals medieval attitudes about who should know what.
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