The word “solstice” was derived from the Latin word “solstitium,” according to the Voices.Earth blog. It is a combination of sol, which means sun, and stitium, which means to stop.
The latter word refers to the sun appearing to briefly stop moving at the moment winter arrives, and also at the moment summer arrives — which is why the start of summer is known as the summer solstice.
Posted 11:01 am, December 21, 2019, by CNN Wires
https://fox2now.com/2019/12/21/winter-solstice-2019-a-short-day-thats-long-on-ancient-traditions/