English

Adjective

stock still ‎(not comparable)

1. Very still; motionless.

   The team was stock still in front of the stable.

Adverb

stock still ‎(not comparable)

1. (idiomatic) Without motion.
   • (Can we date this quote?) Paul Travers' Adventures, by Sam T. Clover.

     "Paul stood stock still; then came a strong impulse to turn and run back."

   He lay stock still among the bodies and blasted equipment.