When you suddenly click that
1) 'Silpheed/Sylpheed' (an email client, and a space shooter videogame series) is just Japanese mangled English for 'sylphid', better known as 'sylph'...
https://en.wikipedia.org/wiki/Silpheed
2) ... which was a word in the popular Romantic mythology of the 1700s-1800s era for 'airy nature spirit'...
https://en.wikipedia.org/wiki/Sylph
3) ... but is itself fake Latin made up by the Swiss-German Paracelsus (1493-1541) to describe his theoretical alchemical entities