Webster’s Revised Unabridged Dictionary · 1913
Comprovincial
Com′pro·vin′cial (kŏm′prō·vĭn′shal), a. Belonging to, or associated in, the same province. [Obs.] — n. One who belongs to the same province. [Obs.]
The six islands, comprovincial In ancient times unto Great Britain. Spenser.