imprecate vs swear

imprecate and swear both are verbs.

Word	Noun	Adjective	Verb	Adverb
imprecate	No	No	Yes	No
swear	No	No	Yes	No

As verbs, imprecate and swear are synonyms defined as:

Other synonyms of imprecate include blaspheme, curse, cuss.

imprecate (verb)	swear (verb)
utter obscenities or profanities	have faith or confidence in
wish harm upon; invoke evil upon	make a deposition; declare under oath
	utter obscenities or profanities
	promise solemnly; take an oath
	to declare or affirm solemnly and formally as true