ooooh right.
6 letters.
This came to me when I wandereed into another corner of the den.....
Edit - spelling (which doesn't augur well for a word game!)
I thought someone might have heard this before.
I guess it's not silly (is a legit puzzle) and having 0 replies thus far, not quick.
I'll add the punctuation.
What goes:- stern to bow, starboard: bow to stern, port?