Hoeth

Hoeth is the God of Knowledge, Learning and Wisdom, and is the patron of Elven wizards and scholars. Hoeth is prayed to when an Elf faces a difficult quandary or confusing problem, for his wisdom can help see the truth of the matter. Elven wizards also pray to Hoeth when preparing for a powerful magical ritual.

Source

 * Warhammer Fantasy RPG 2nd ED -- Tome of Salvation (pg. 125).