montan wax vs wax

montan wax and wax both are nouns.

Word	Noun	Adjective	Verb	Adverb
montan wax	Yes	No	No	No
wax	Yes	No	Yes	No

As nouns, wax is a hypernym of montan wax; that is, wax is a word with a broader meaning than montan wax:

montan wax: a hard wax obtained from lignite
wax: any of various substances of either mineral origin or plant or animal origin; they are solid at normal temperatures and insoluble in water

montan wax (noun)	wax (noun)
a hard wax obtained from lignite	any of various substances of either mineral origin or plant or animal origin; they are solid at normal temperatures and insoluble in water