PATIO, the Spanish name for an inner court or enclosed space in a house, which is open to the sky. The " patio " is a common feature in houses in Spain and Spanish America. The word is generally referred to the Lat. pater e, to lie open; cf. " patent," or to spatium, space.
Note - this article incorporates content from Encyclopaedia Britannica, Eleventh Edition, (1910-1911)