Where does “補助形容詞” come from?

補助形容詞 (Japanese) comes from Japanese 形容詞, from Japanese 詞, from Japanese 自動詞, from Japanese 自動 — automatic movement, automatic functioning;...

補助形容詞 (Japanese): a free Japanese adjective (自立語) that can be grammaticalized by being attached to an inflectional form of another 用言

Definitions

  1. a free Japanese adjective (自立語) that can be grammaticalized by being attached to an inflectional form of another 用言

Ancestry of “補助形容詞”, step by step

補助形容詞 traces back through two separate lines of ancestry.

via Japanese 形容詞

StepLanguageWordMeaning
1Japanese形容詞a word that modifies or describes a noun or...
2Japaneseword; word; part of speech
3Japanese自動詞intransitive verb
4Japanese自動automatic movement, automatic functioning;...

via Japanese 補助

StepLanguageWordMeaning
1Japanese補助help, aid
Every word from Japanese 自動Every word from Japanese Every word from Japanese 自動詞