P / praecinctĭo
noun

praecinctĭo

gen. praecinctōnis · gender feminine · decl. 3rd
praecingo, lit.
a girding about; a girdle
a girding about, a girdle: zonae, Hilar. in Matt. 2, 2.—Hence,
the broad landing-place; lobby around the amphitheatre; between each tier of seats by extension
Transf., the broad landing-place or lobby around the amphitheatre, or between each tier of seats, Vitr. 5, 3; 2, 8.