jackboot vs Hessian boot

jackboot and Hessian boot both are nouns.

Word	Noun	Adjective	Verb	Adverb
jackboot	Yes	No	No	No
Hessian boot	Yes	No	No	No

As nouns, jackboot and Hessian boot are synonyms defined as:

Other synonyms of jackboot include hessian, Wellington, Wellington boot.

jackboot (noun)	Hessian boot (noun)
(19th century) a man's high tasseled boot	(19th century) a man's high tasseled boot