Definition of plethorically in English:

plethorically

Pronunciation /plɛˈθɒrɪkli/ /plɪˈθɒrɪkli/

adverb

  • In a plethoric manner; to an excessive degree.

Origin

Early 19th century; earliest use found in Charles Lamb (1775–1834), essayist. From plethoric + -ally.