superincumbence
/ˌsuːp(ə)rɪnˈkʌmb(ə)ns/ /ˌsjuːp(ə)rɪnˈkʌmb(ə)ns/Now rare
noun
The quality or fact of being superincumbent; the condition of lying or pressing on something; (figurative ) pressure, weightiness.
Origin
Late 17th century. From superincumbent: see -ence. Compare earlier incumbence.