(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.” —
Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894