From LSWiki

Class: Language Skills
Attribute: Intellect
Pedagogy: Procedural
Practitioner Term: Speaker of Erisian
Hidden Skill
Language Sound: Confusing
Language Difficulty: Slightly Hard
Language Speed: Slightly Fast
Language Overlaps:
 Fromageb: slight

The ability to speak and comprehend the Erisian language, a bizarre tongue,
nonsensical to the ears of non-speakers -- and often enough to those of speakers
as well -- favored by the followers of Eris.

Trainers

Leah's Hill: Arvan the Keeper
Temple of Discordia: Malaclypse the Younger
Association:
Crafty Linguists: Janid Suzak Wanders
Guild:
Quest: