From the article Corona beer brand is impacted by the coronavirus news:
We’d like to take a moment to repeat: The coronavirus has nothing to do with Corona the beer; the virus is named after the Latin word for crown thanks to an exterior structure that features little crown-like spikes, while the beer is named for the Sun’s corona.
The sun’s corona? Named for the Latin word for crown.
Completely different etimologies there.
(Link via Instapundit.)