Definition of "befog"
befog
verb
third-person singular simple present befogs, present participle befogging, simple past and past participle befogged
Quotations
Sad, in her covert, Hannah saw that her mother was now sitting straight against the headboard and was smoking a cigarette in long, meditative puffs; the smoke befogged her frowning forehead.
1953, Jean Stafford, “Cops and Robbers” (original title: “The Shorn Lamb”) in The Collected Stories of Jean Stafford, New York: Dutton, 1984, p. 432
To obscure, make less clear (a subject, issue, etc.).
Quotations
There is only one way to understand syphilis, and that is to give it impartial, discriminating discussion as an issue which concerns the general health. To color it up and hang it in a gallery of horrors, or to befog it with verbal turnings and twistings, are equally serious mistakes.
1918, John H. Stokes, chapter 2, in The Third Great Plague: A Discussion of Syphilis for Everyday People, Philadelphia: W.B. Saunders, pages 15–16