favīsae or favissae, ārum, f.,
underground reservoirs or cellars near the temples , for water or for sacred utensils no longer in use , Varr. ap. Gell. 2, 10; Paul. ex Fest. s. h. v., p. 88, 4 Müll.; cf.: favissae, θησαυροί, Gloss. Philox.