known
UK: nəʊn | US: noʊn
adj. recognized, familiar, or understood
adj. publicly acknowledged or established
v. (past participle of know) to have awareness or familiarity with
The word known originates from the Old English cnāwan (to know), derived from the Proto-Germanic knēaną, meaning "to perceive or recognize." The past participle suffix -n (as in shown, grown) was commonly used in Old and Middle English. Over time, know evolved to its modern spelling, while known retained its role as the past participle, emphasizing a state of recognition or familiarity.
She is a known expert in marine biology.
The rules must be made known to all participants.
His talent for music became widely known.
The location of the treasure remains unknown.
He has known her since childhood.