The Obsidian Isles
Elvish is one of the many languages spoken across Korin, and is natively spoken to both Elves, and Drow. Elvish is also widely recognized as the official Political Language. Whereas
Common is the language most spoken in all casual venues, elvish is considered the norm for any and all official venues.
From courts to kings, from nobles to business owners, being fluent in elvish is a sign of respectability among citizens of Korin. This largely stems from the heavy influence that the Vanguard have over modern day culture.
Modern Elvish comes from the Vanguard’s language, although the two languages are so vastly different that even native speakers of elvish struggle to read the ancient texts.