norther vs tramontana

norther and tramontana both are nouns.

Word	Noun	Adjective	Verb	Adverb
norther	Yes	No	No	No
tramontana	Yes	No	No	No

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

norther: a wind that blows from the north
tramontana: a cold dry wind that blows south out of the mountains into Italy and the western Mediterranean

Other hyponyms of norther include bise, bize, mistral, tramontane.

norther (noun)	tramontana (noun)
a wind that blows from the north	a cold dry wind that blows south out of the mountains into Italy and the western Mediterranean