Word Study
Versed
CIDE DICTIONARY
Versed, a. [Cf. F. versé, L. versatus, p. p. of versari to turn about frequently, to turn over, to be engaged in a thing, passive of versare. See Versant, a. ].
Acquainted or familiar, as the result of experience, study, practice, etc.; skilled; practiced; knowledgeable; expert. [1913 Webster]
"Deep versed in books and shallow in himself." [1913 Webster]
"Opinions . . . derived from studying the Scriptures, wherein he was versed beyond any person of his age." [1913 Webster]
"These men were versed in the details of business." [1913 Webster]
Versed, a. [L. versus turned, p. p. vertere. See 1st Versed.].
Turned. [1913 Webster]
OXFORD DICTIONARY
Versed, adj. (foll. by in) experienced or skilled in; knowledgeable about.
Versed, adj. Math. reversed.
Idiom
versed sine unity minus cosine.
Etymology
mod.L (sinus) versus turned (sine), formed as VERSE
For further exploring for "Versed" in Webster Dictionary Online