有職故実

ゆうそくこじつ

noun

•

studies in usages and practices of the ancient court and military households(yojijukugo)

有	possess, have, exist, happen, occur, approx
職	post, employment, work
故	happenstance, especially, intentionally, reason, cause, circumstances, the late, therefore, consequently
実	reality, truth, seed, fruit, nut