We don't have synonyms for countree yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are country, counter and countre.
(n) :
(archaic, poetic) Alternative form of country, used when poetic meter demands a stress on the final syllable. [The territory of a nation; a sovereign state or a region once independent and still distinct in institutions, language, etc.]
(n) :
(archaic, poetic) Alternative form of country, used when poetic meter demands a stress on the final syllable. [The territory of a nation; a sovereign state or a region once independent and still distinct in institutions, language, etc.]