watcher (n.)
one who stays wide-awake
Mac II.ii.71[Lady Macbeth to Macbeth] Get on your nightgown, lest occasion call us / And show us to be watchers
TG II.iv.133[Valentine to Proteus] Love hath chased sleep from my enthralled eyes, / And made them watchers of mine own heart's sorrow
SHAKESPEARE'S WORDS © 2018 DAVID CRYSTAL & BEN CRYSTAL