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Related to irredenta: irredentist
A region that is culturally or historically related to one nation but is subject to a foreign government.
[From Italian (Italia) irredenta, unredeemed (Italy), Italian-speaking areas subject to other countries, feminine of irredento : in-, not (from Latin; see in-1) + redento, redeemed (from Latin redemptus, past participle of redimere, to redeem; see redeem).]
a variant spelling of irridenta
ir•re•den•ta(ˌɪr ɪˈdɛn tə)
a region under the political jurisdiction of one nation but related to another through cultural, historical, or ethnic ties.
[1910–15; < Italian (Italia) irredenta (Italy) unredeemed; see irredentist]