Mine came from a character in G.R.R. Martin's "Song of Ice and Fire" series. No personal resemblence, just thought he was an interesting character with an interesting moniker.
Eosin is a cool sounding word with a ring of old world realism to it. However, it is a micro stain used to turn all those small parts of a cell red. The name means "red."
I thought that is was cute to have a redundant name ~ hence "the red" part.
Full name was Matrix Sorcica (second 'c' is pronouned as 'k'), however at the time I signed up for Enworld, I couldn't find out what to do since you're not allowed to separate user names.
Should just have used MatrixSorcica. :\
Nhi Vanye i'Chya, illin (sworn warrior servant) to Morgaine, last survivor of an (apparently) Union expedition sent through the time/space gates created/found by the qhal. From the Morgaine novels (Gate of Ivrel, Well of Shiuan, Fires of Azeroth, Exile's Gate) by C.J. Cherryh.