This is an irregular feature - both in frequency and oddness - dedicated to a word I came across that I have never previously used.
obdormition - n. Numbness or tingling in an extremity usually due to direct pressure on the sensory nerve, but sometimes caused by a lack of motion.
In English we often describe this condition as a limb "going to sleep" or "falling asleep." Obdomition is generally followed by a condition known as paraesthesia, or the feeling of "pins and needles."
The word is derived from the Latin obdormire, which means "to fall asleep." Sharp readers will also recognize the Spanish and French verb dormir ("to sleep").