零件
língjiàn · HSK 7
part
⚙️ 零 (fragmentary, odd) + 件 (item, piece) = the odd individual pieces, i.e. parts/components
零 carries the sense of small/leftover/fractional bits; 件 is the counter for individual items. Together: the separate small items that make up a whole, hence spare parts or components.
零 — rain 雨 + order 令 (phonetic)
A semantic-phonetic compound: 雨 (rain) gives the meaning and 令 supplies the sound. It originally meant scattered drops of falling rain, then extended to 'fragmentary, leftover bits,' and in modern Chinese came to mean 'zero.'
件 — person radical 亻 + ox 牛
件 combines the person radical 亻 with 牛 (ox). Originally it referred to dividing or counting items, with oxen being valuable units of property to count. It came to mean a measurable item or matter, and today serves as a measure word for things, documents, and affairs.