>Is that word known to others here

well, Mav, had you but followed through on the OneLook notion... 8-)

but aside from being a clinchpoop, I found a really obscure word for this concept in an outdated seaman's glossary:
http://home.mn.rr.com/wwftd/jkl.htm#kumatage

edit[1] - I didn't see your edit 2