Webster's Revised Unabridged Dictionary · 1913

Beseech

Beseech ({not transcribed}) , transitive verb

[Old English bisechen, biseken (akin to German besuchen to visit); pref. be- + sechen, seken, to seek. See Seek.]

1.
To ask or entreat with urgency; to supplicate; to implore.
I beseech you, punish me not with your hard thoughts. — Shakespeare
But Eve... besought his peace. — Milton

Beseech , noun

Solicitation; supplication. [Obsolete or Poetic] — Shakespeare