Sentence:  It [the steamboat "City of Fayetteville"] was launched not far from the Clarendon bridge, and it has been related that some one having prophesied that it would <WSD>turn turtle</WSD> when it reached the water, the architect boldly rode in its bow, as it slipped off its ways and the event justified his faith in his work. 
Meaning of the word marked with <WSD> tags:  Especially of a boat or ship, or some other vehicle: to turn upside down.