原由 (yuán yóu) — reason, cause, grounds

Definition

Same meaning as 原因 yuányīn ('reason, cause') but written/formal — use it in formal writing, official explanations, or legal contexts rather than everyday speech.

noun

reasoncausegrounds

Examples

，原由。
Tā lí kāi gōng sī, yuán yóu bù míng.
He left the company for unknown reasons.
原由。
Zhè jiàn shì de yuán yóu hěn fù zá.
The reasons behind this matter are very complicated.
原由。
Nǐ bì xū shuō míng zhè yàng zuò de yuán yóu.
You must explain the reason for doing this.

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