In vanilla languages open language_DWARF and you can change words in the language. Entity default is probably what you're more interested in though, you can change some of the symbol types they use. Which I think affects how they name things and maybe their art and group symbols also. There is also tags to modify the what things they like to depict in art or how much they depict their own race or good/evil things. If you experiment you might find that any sphere can be used as an art modifier but I haven't tested it myself.
Happy modding!

If you want to only edit how their engravings are described instead of changing what they engrave slightly then that is probably hard coded.

So if I wanted to edit the entity naming of a race, am I able to do it so that a family can share simile names or is that probably a hardcode issue?

that would be harcoded. would be a cool feature though. personally I would like to access a list of all the living decedents of a long dead character from legends mode. modding with the raws is mostly useful for making new content like creatures and civilizations rather than completely changing game mechanics.

Originally posted by Nautilus:

that would be harcoded. would be a cool feature though. personally I would like to access a list of all the living decedents of a long dead character from legends mode. modding with the raws is mostly useful for making new content like creatures and civilizations rather than completely changing game mechanics.

Yes, I too would love to see a family’s history and past deeds, like a clan feature or something