Morpheme
Keel
Type
free base
Denotation
lowest and principal beam of a nautical vessel; capsize, tumble, fall
Etymology
Middle English kele; Old Norse kjǫlr
Evidence
keel, keelage, keelback, keelboat, keeled, keelful, keelhaul, keeling, keelless, keelman, keels, keely
Notes
“capsize” notion developed from “beam” notion because a capsized vessel turns keel-side up
