sub-sovereign
/ˈsʌbˌsɒvr(ɪ)n/ /ˌsʌbˈsɒvr(ɪ)n/adjective
1Subordinate to a sovereign authority, body, etc.; specifically designating a regional or local government body.
2 Banking. Of or relating to commercial lending to a sub-sovereign government body.
Origin
Late 18th century (in an earlier sense). From sub- + sovereign adjective.