Hymnology
Hymnology , noun
[Greek {not transcribed} hymn + -logy: compare French hymnologie.]
1.
The hymns or sacred lyrics composed by authors of a particular country or period; as, the hymnology of the eighteenth century; also, the collective body of hymns used by any particular church or religious body; as, the Anglican hymnology.
2.
A knowledge of hymns; a treatise on hymns.