The following spells restore the following stats:

remove exhaustion: restores CON
remove paralysis: restores AGI
cure blindness: restores PER
major choler: restore STR
minor melancholy: restores DEX, AGI
cure mental illness: INT
mind strength: WIS
intellect fortress: WIS

Note that these spells reverse temporary stat loss only, as inflicted by
various skills, spells or other abilities. Loss of stats, even temporary
loss of stats, due to age, disease, cursed armor or similar factors will
not be restored. Age-altering spells, time or surgery, curse removal or
other effects will be required to relieve such impediments.
SEE ALSO: individual spell helps