Where does “分光特性” come from?

分光特性 (Japanese) comes from Japanese 分光, from Japanese 分, from Middle Chinese ふん, from Middle Chinese 糞.

分光特性 (Japanese): a spectral characteristic

Definitions

  1. a spectral characteristic

Ancestry of “分光特性”, step by step

分光特性 traces back through two separate lines of ancestry.

via Japanese 分光

StepLanguageWordMeaning
1Japanese分光a spectrum; to divide light into a spectrum
2Japanese分a minute; a part, a share, a portion; an obsolete...
3Middle Chineseふん—
4Middle Chinese糞—

via Japanese 特性

StepLanguageWordMeaning
1Japanese特性characteristic, peculiarity, property
Every word from Middle Chinese 糞 →Every word from Middle Chinese ふん →Every word from Japanese 分 →