Where does “字送り” come from?

字送り (Japanese) comes from Japanese 字, from Middle Chinese 字 — letter, symbol, character; character.

字送り (Japanese): a carriage return

Definitions

  1. a carriage return

Ancestry of “字送り”, step by step

字送り traces back through two separate lines of ancestry.

via Japanese

StepLanguageWordMeaning
1Japaneseletter, character; handwriting, penmanship; a...
2Middle Chineseletter, symbol, character; character

via Japanese 送り

StepLanguageWordMeaning
1Japanese送り
Every word from Middle Chinese Every word from Japanese