IPA: /ˈstɜrn.sən/
KK: /ˈstɜrnˌsən/
A structural piece in a boat that helps strengthen the connection between the keel and the sternpost.
The shipbuilder installed a sternson to ensure the hull was sturdy and secure.
This word originates from Old English, meaning a son of a stern or strict person. The term 'stern' refers to someone who is serious or strict, and 'son' indicates a male offspring.
Think of a 'stern' person being a strict parent, and 'son' meaning a male child — that's why 'sternson' refers to the son of a stern individual.