S / subnŏtātĭo
noun

subnŏtātĭo

gen. subnŏtātōnis · gender feminine · decl. 3rd
a signing underneath; subscription
a signing underneath, subscription (post-class.), Cod. Just. 1, 23, 6; Cod. Th. 8, 5, 22; Hier. Ep. 123.