From ME. lynspin < OE. lynis (a pin securing a wheel to an axle). Figurative use attested from the mid 20th Century.
- a pin inserted through holes at the end of an axle, so as to secure a wheel
- figurative a central cohesive source of stability and security; a person or thing that is critical to a system or organisation.
trans-top|a securing pin
German: Achsnagel m, LÃ¼nse f
Middle English: lynspin
Norwegian: sikring m, splint m
Old English: lynis g|Old English