On a similar theme, the meanings of the days names, mostly from Norse or Roman gods.
Sunday - Literally Suns Day from a Roman feast day.
Monday - Moons day, to celebrate the moon goddess.
Tuesday - Named after the Norse god Tyr
Wednesday - Named after the Norse god Wodan (Odin)
Thursday - Named after the Norse god Thor.
Friday - Named after the Norse god Frigg.
Saturday - Named after the Roman god Saturn.
The origin and evolution of words is a fascinating subject!
I could never get a grip of the calendar rhyme when I was a kid, luckily Dave Gorman has a new calendar to aid us all