Editing City of Dead Gods:Main Page (section)

===General===
AT means After Treaty. The grudging end to open war, the Treaty of Hallows delineated space between the Elves, Elf-Friends, Goblinkind, and the Others (such as illithids, dragons, psurlons, githkin, beholders, etc. etc.) Needless to say, the Treaty's border markings are almost universally ignored by everyone who isn't an elf captain or hobgoblin pack alpha.

There are wind collectors on the Slayer's back which collect the ephemereal energy of the stellar wind and condense it for use in the city, much like the Jormungandr does. The Lamplighter's Guild, all dwarves, command a pretty hefty price in the neighborhoods that use their service, since gaslight is a hassle to install, costs a lot of jink to upkeep, and if you piss off the dwarves, you find out that all the fancy gaslight lamps in your house have an astonishing tendency to burst into flames, and not the way you intended.

The Common tongue is surprisingly...common. Human languages throughout Known Space tend to run to similarities, and so oddly enough people from one planet can speak to people from another with only a few minor differences in wording and metaphors, at least in most cases. Human is thus the trade Common for wildspace, though of course Elf and Goblin are popular as well.