淫 (yín) — (bound form) excessive, overflowing; (bound form) licentious, lewd, obscene

Definition

A bound morpheme with two main uses: 'excessive / overflowing' (as in 淫雨 relentless rain) and 'lewd / obscene' (as in 淫秽 obscene). It never stands alone and is used almost entirely inside compound words.

bound form
excessiveoverflowinglicentiouslewdobscene

Examples

  • 淫。
    Zhè chǎng yín yǔ yǐ jīng xià le sān tiān.
    This continuous rain has been falling for three days.
  • 。
    Wǎng luò shàng de yín huì nèi róng yīng gāi bèi jìn zhǐ.
    Obscene content online should be banned.
  • ,淫。
    Tā làn yòng zhí quán, yín wēi bī pò xià shǔ.
    He abused his power and forced his subordinates through his despotic authority.

Origin

Sound + meaning
六书liùshū
形声xíngshēng

Most characters — around four in five — are built this way: one part hints at the meaning, the other at the pronunciation.

Meaning part形符xíngfú
氵Written in full as水shuǐwater
Sound part声符shēngfú
㸒
㸒㸒淫yín
The sound has drifted apartThe sound part was a clue two thousand years ago — it often still helps, but not always.

The shape combines 氵 (the water form of 水) with 㸒, which supplies the sound.

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