由よし

noun

reason; cause; significance

Refers to the underlying reason, cause, or meaning behind something. Often used in formal or written contexts, and in set phrases like 由ありげ or 由なく.

• 彼かれが辞じ職しょくした由よしを聞きかせてほしい。

  Please tell me the reason he resigned.

• この手て紙がみには深ふかい由よしがあるらしい。

  This letter seems to have a deep significance.

noun

I hear that; it is said that; reportedly

Only when written 由

Used to convey hearsay or reported information, often in the pattern ～との由 or ～の由. Restricted to the kanji 由. Formal and somewhat literary.

• お元げん気きでいらっしゃる由よし、何なによりです。

  I hear that you are doing well, which is wonderful.

• 会かい議ぎは延えん期きされたとの由よし。

  I hear that the meeting has been postponed.