justiciary vs jurist

justiciary and jurist both are nouns.

Word	Noun	Adjective	Verb	Adverb
justiciary	Yes	No	No	No
jurist	Yes	No	No	No

As nouns, jurist is a hypernym of justiciary; that is, jurist is a word with a broader meaning than justiciary:

justiciary: formerly a high judicial officer
jurist: a public official authorized to decide questions brought before a court of justice

Other hypernyms of justiciary include judge, justice.

justiciary (noun)	jurist (noun)
the jurisdiction of a justiciar	a legal scholar versed in civil law or the law of nations
formerly a high judicial officer	a public official authorized to decide questions brought before a court of justice