suppositio
Latin > English (Lewis & Short)
suppŏsĭtĭo: (subp-), ōnis, f. suppono,
I a putting or setting under. *
I In gen.: ovorum, Col. 8, 5, 9.—
II In partic., a putting in the place of another, substitution (of a child): pueri, Plaut. Capt. grex 3: puellae, id. Cist. 1, 3, 4: suppositionem facere, id. ib. 1, 2, 25; id. Truc. 2, 4, 83.