Answer: keelhaul

AnswerCrossword Clue
KEELHAULDrag someone under a ship, as the pirates did.
KEELHAULPunish, old navy-style
keelhaulto haul (an offender) under the bottom of a ship and up on the other side as a punishment
keelhaulto rebuke severely
keelhaulto rebuke severely, also KEELHALE