後ご生しょう大だい事じ

noun

with utmost devotion; take great care of

A yojijukugo expressing deep, almost religious devotion or extreme care in handling something. Often used in the adverbial form 後生大事に.

• 祖そ母ぼからもらった手て紙がみを後ご生しょう大だい事じにしまってある。

  I keep the letter from my grandmother with utmost care.