Savant

A Savant is a scholar who usually works for the citadel.

A Death at Dawn
In A Death at Dawn, there are two named Savants, Enya and Selkie, who both served under Lady Victoria Osmont. There is also an unnamed Savant who tended to Lady Dimia Ayers when she had deathskin.

A Skinchanger's Journey
Savant Ailig is the only Savant in A Skinchanger's Journey.