Lewis Short
mesauloe | trisyl. (noun F) = μέσαυλοι: (), , , = .—In archit.
* Narrow passages between two rooms or walls: inter duo autem peristylia itinera sunt, quae mesauloe dicuntur,Vitr. 6, 7 (10), 5; cf. andron.
Charlton T. Lewis, Charles Short, A Latin Dictionary