tertiatio
From LSJ
Latin > English (Lewis & Short)
tertĭātĭo: ōnis, f. tertiatus,
I a doing a thing the third time; concr., that which is produced by a third operation: miscere tertiationem cum primā pressurā, the oil produced by the third pressure, Col. 12, 52, 11.
Latin > French (Gaffiot 2016)
tertĭātĭō, ōnis, f. (tertio 2), troisième pressurage de l’olive : Col. Rust. 12, 52, 11.