I've probably bored you four previous years, so I'll repeat myself.  Years ago I worked with a laboratory technician who was not to busy too often, and so he spent some time looking up the most absurd technical terms and measurements he could find in our various handbooks and such.   Such as milliparsecs   (parsec is about 3.25 light years).
One of our favorites was "furlongs per fortnight"  that's about 220 yards/ per 14 days.  It's an honestly used  measurement in sewage treatment plants.  The time for a a turd to travel through the treatment ponds.  
Whenever I hear the word 'fortnight' the connection comes to mind.  The bishops have carefully chosen a mental image for me.