envenomed vs spleenful

envenomed

adj
  • Poisonous, noxious; embittered. 

spleenful

adj
  • Full of spleen; spiteful. 

noun
  • More than one can take. 

  • A quantity of invective. 

How often have the words envenomed and spleenful occurred in a corpus of books? (source: Google Ngram Viewer )