Where does “西夏文字” come from?

西夏文字 (Japanese) comes from Japanese 文字, from Middle Chinese 文字.

西夏文字 (Japanese): the Tangut script

Definitions

  1. the Tangut script

Ancestry of “西夏文字”, step by step

西夏文字 traces back through two separate lines of ancestry.

via Japanese 文字

StepLanguageWordMeaning
1Japanese文字a letter, a character; script, writing system; a...
2Middle Chinese文字

via Japanese 西夏

StepLanguageWordMeaning
1Japanese西夏Western Xia
Every word from Middle Chinese 文字Every word from Japanese 文字
西夏文字 — Etymology, Origin & Word History | Etymology Explorer