Talk:Eidolon Gantulyst/@comment-2A02:A31A:A13B:5B00:E9B7:BA7B:4A6A:1E53-20180223010931/@comment-208.66.148.127-20180303071928

The form referring to earth is spelled "terra" with 2 R's. "Tera" with one R is a prefix that indicates 10^12, or one trillion, of something (for example "Terawatt" or "Terabyte"), which likely just refers to the Teralyst's large size and power output relative to something like a Vomvalyst or a Battalyst.

The working name for the Gantulyst was actually "Megalyst", but this was likely changed because "Mega" only indicates 10^6, or one million, of something, which would make it smaller and less potent than the Teralyst (which clearly is not the case).

I'd guess that it comes from "garGANTUan" which is a descriptor referring to a very, very large thing. Which suits the Gantulyst quite well.