1834, from bathos on the model of pathetic (q.v.), which, however, does not come directly from pathos, so the formation is either erroneous or humorous. Bathotic (1863, perhaps on model of chaotic) is not much better.
a bathetic novel
bateau
bated breath
batement
bath
bathe
bathetic
bathing
batholith
bathos
bathrobe
bathroom