peremptorily vs swiftly

peremptorily

adv
  • In a peremptory manner; in a commanding tone, brooking no delay. 

swiftly

adv
  • In a swift manner; quickly; with quick motion or velocity; fleetly. 

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