Gnomes typically dwell in other races' settlements. They are known for their craftwork and rigorous work ethics.
For Gnomes, the Stone is the source of all suffering, and suffering is life. Many gnomes choose to toil very hard in service to the Stone in order to minimize harm in the world. You encounter many gnomes in the vast bureaucracy of the Brethren.
Gnomes have a rich lore transmitted orally through the Ages. Gnomish has thus remained strong and it is not unusual for other races to pick up basic expressions.