from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A swimming stroke in which a double overarm movement is combined with a scissors kick.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A swimming stroke in which the left and right hands are alternately raised out of the water, brought forward and drawn back through the water. A scissor kick is performed on every second stroke.
from The Century Dictionary and Cyclopedia
- n. In swimming, the double over-arm stroke.
After John Trudgen (1852-1902), British swimmer.(American Heritage® Dictionary of the English Language, Fourth Edition)
Named for John Trudgen (1852-1902), an English swimmer who popularised the stroke. (Wiktionary)
Byron may have used a variant of the trudgen, with breaststroke kicks and crawl-style arm action.
He changed from breast to over-arm stroke, then he shifted to the crawl and trudgen stroke.
That’s only the old trudgen dressed up with a modern name.