reinsure vs underwrite

reinsure and underwrite both are verbs.

Word	Noun	Adjective	Verb	Adverb
reinsure	No	No	Yes	No
underwrite	No	No	Yes	No

As verbs, underwrite is a hypernym of reinsure; that is, underwrite is a word with a broader meaning than reinsure:

reinsure: insure again by assuming all or a part of the liability of an insurance company already covering a risk
underwrite: protect by insurance

Other hypernyms of reinsure include cover, insure.

reinsure (verb)	underwrite (verb)
insure again by transferring to another insurance company all or a part of a liability assumed	protect by insurance
insure again by assuming all or a part of the liability of an insurance company already covering a risk	guarantee financial support of
provide additional insurance for