Hello,
I’m compiling this one in advance because I’ll be recovering from jet lag when it goes out to blog subscribers (after to a trip to visit my youngest, studying overseas this semester). I expected it to be a modern word but as so often happens, its roots are considerably older.
First of all, did you know it was originally a syndrome? In the early days of flight, jet lag (also correct as jetlag) was called time zone syndrome. But jet lag won the battle for being the term used for that unsettling body experience of having moved the wrong way around our globe. The term dates to 1966, long before I ever took a flight and when, in my imagination at least, flight was considerably more stylish and relaxed than it is today.
Jet dates to the late 1600s in English when it related to a jet of water and came from the French verb jeter (to throw) – one I remember from its use in ballet class. This led to jet propulsion (originally relating to water) and the jet engine for flight in the 1940s. The jet age was named from 1952.
The lag part of the phrase has a fascinating back story. In the 1800s and early 1900s it acquired various mechanical definitions where lag was a retardation of movement, a delay in driving reflexes, and in radio technology, but the word itself came from an earlier verb.
To lag, a verb in English since the early 1500s, means to move slowly and not keep up with the others. It could be even earlier though as there was the idea in the 1300s of a lag-man, the last man. The origins of the verb may lie in Scandinavia as Norwegian has lagga (go slowly) but it’s uncertain. I loved discovering that a lag-tooth, the last one to arrive in our jaws, is a 1610s term for a wisdom tooth. Wisdom takes time, I guess.
Until next time, happy reading, writing, and wordfooling,
Grace (@Wordfoolery)
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