(algebra) descending powers

Alternative spelling of 天下り: descent to earth from heaven; an avatar; in Japan's postwar period, the practice of awarding a high-level bureaucrat with a high-paying job after retirement (also spelled 天下り): a kind of revolving door syndrome

to entreat the enemy to surrender

entreating the enemy to surrender

ignorance is bliss

complete denial of knowing (an incident in question)

(Classical Japanese, archaic, honorific) to know

God only knows

to make known

to have no way of knowing; to be completely ignorant of