close (adv.)
securely, in strict confinement
2H6 I.iv.49[Buckingham to guards, of Jourdain, Southwell, and Bolingbroke] let them be clapped up close
R3 IV.iii.36[King Richard alone] The son of Clarence have I pent up close
SHAKESPEARE'S WORDS © 2018 DAVID CRYSTAL & BEN CRYSTAL