bastion

tyyssija, linnake

bastioni a projecting part of a rampart or other fortification
1942, (w), (w), "Beginnings," http://www.gutenberg.net.au/ebooks04/0400201.txt

(..) Fort Camosun had swelled herself from being a little Hudson's Bay Fort, inside a stockade with bastions at the corners, into being the little town of Victoria, and the capital of British Columbia.