9 Grammatical Pitfalls
c.1300, "tract of land of a considerable but indefinite extent," from Anglo-French regioun, Old French region "land, region, province" (12c.), from Latin regionem (nominative regio) "a district, portion of a country, territory, district; a direction, line; boundary line, limit," noun of state from past participle stem of regere "to direct, rule" (see regal). Phrase in the region of "about" (of numbers, etc.) is recorded from 1961.
region re·gion (rē'jən)
An area of the body having natural or arbitrary boundaries.
A portion of the body having a special nervous or vascular supply.
A part of an organ with a special function.