P / prŏpnĭgēum
noun greek

prŏpnĭgēum

gen. prŏpnĭgei · gender neuter · decl. 2nd
= προπνίγειον
the place before an oven; furnace; the room where a bath was heated
the place before an oven or furnace, the room where a bath was heated (pure Lat. praefurnium), Vitr. 5, 11; Plin. Ep. 2, 17, 11.