sachem vs politico

sachem and politico both are nouns.

Word	Noun	Adjective	Verb	Adverb
sachem	Yes	No	No	No
politico	Yes	No	No	No

As nouns, politico is a hypernym of sachem; that is, politico is a word with a broader meaning than sachem:

Other hypernyms of sachem include pol, political leader, politician.

sachem (noun)	politico (noun)
a chief of a North American tribe or confederation (especially an Algonquian chief)	a person active in party politics
a political leader (especially of Tammany Hall)