E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Genius Loci (Latin).
The tutelary deity of a place.
In the midst of this wreck of ancient books and utensils, with a gravity equal to [that of] Marius among the ruins of Carthage, sat a large black cat, which, to a superstitious eye, might have presented the genius loci, the tutelar demon of the apartment.Sir W. Scott: The Antiquary, chap. iii.