CORONA

(from the Latin corona and the Greek κορώνη meaning crown or halo)

is a word describing:
1.  the projecting part of a classic cornice;
2. the upper portion of a bodily part (such as a tooth, the skull or the penis);
3.  an appendage or series of united appendages on the inner side of the corolla in some flowers (such as the daffodil);
4.  a faint glow adjacent to the surface of an electrical conductor at high voltage;
5.  the gaseous 'atmosphere' of the sun which is even hotter than its surface, typically visible during an eclipse, and which emanates a  'solar wind' to afflict its planets;
6.  a circle of light made by the apparent convergence of the streamers of the aurora borealis;
7.  in medieval Latin, a unit of currency vulgarly known as a crown, krone, krona, koruna, etc.

Now we are hearing a lot about a particular corona-virus  in the subfamily Orthocoronavirinae...
which probably comes from the sun, lives in the aurora borealis, hangs about on cornices & daffodils, and is propagated (upon payment) via faintly-glowing penises of pigs and humans.