assurance vs troth

assurance and troth both are nouns.

Word	Noun	Adjective	Verb	Adverb
assurance	Yes	No	No	No
troth	Yes	No	No	No

As nouns, troth is a hyponym of assurance; that is, troth is a word with a more specific, narrower meaning than assurance:

Other hyponyms of assurance include guarantee, warrant, warrantee, warranty, guarantee, plight, vow.

assurance (noun)	troth (noun)
freedom from doubt; belief in yourself and your abilities	a solemn pledge of fidelity
a statement intended to inspire confidence	a mutual promise to marry
a binding commitment to do or give or refrain from something
a British term for some kinds of insurance