bye and large is the same as full and bye. A sailing ship term. Basically a ship sailing too close to the wind moves slower- if it moves off the wind a bit the sails will fill and she will move quicker- she is bye and large
You asked this exact same question yesterday morning and I provided three responses as requested. I felt it odd that you'd posted it in Myths & Legends, I have to say...but what the hey, I thought! Did you see my replies? They're still there.