sacramental oil vs unguent

sacramental oil and unguent both are nouns.

Word	Noun	Adjective	Verb	Adverb
sacramental oil	Yes	No	No	No
unguent	Yes	No	No	No

As nouns, unguent is a hypernym of sacramental oil; that is, unguent is a word with a broader meaning than sacramental oil:

sacramental oil: a consecrated ointment consisting of a mixture of oil and balsam
unguent: semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation

Other hypernyms of sacramental oil include balm, ointment, salve, unction.

sacramental oil (noun)	unguent (noun)
a consecrated ointment consisting of a mixture of oil and balsam	semisolid preparation (usually containing a medicine) applied externally as a remedy or for soothing an irritation