Strong's #4403: prumna (pronounced proom'-nah)
feminine of prumnus (hindmost); the stern of a ship:--hinder part, stern.
Thayer's Greek Lexicon:
́
prumna
1) the stern or hinder part of the ship
Part of Speech: noun feminine
Relation: from prumnus (hindmost)
Usage:
This word is used 3 times:
Mark 4:38: "was in the hinder part of the ship, asleep on a pillow: and"
Acts 27:29: "they cast four anchors out of the stern, and wished for the day."
Acts 27:41: "stuck fast, and remained unmovable, but the hinder part was broken with"