gnomology

from The Collaborative International Dictionary of English v.0.48

Gnomology \Gno*mol"o*gy\, n. [Gr. ?; ? judgment, maxim + ?
   discourse: cf. F. gnomologie.]
   A collection of, or a treatise on, maxims, grave sentences,
   or reflections. [Obs.] --Milton.
   [1913 Webster]