[1] 最高敬語 - Wikipedia (2024-06-29T14:34:16.000Z, 2024-07-01T13:48:53.977Z) https://ja.wikipedia.org/wiki/%E6%9C%80%E9%AB%98%E6%95%AC%E8%AA%9E

[2] 最高敬語、絶対敬語、自尊敬語とは何ですか? - ======①最高敬語=地の... - Yahoo!知恵袋 (LY Corporation, 2024-07-01T13:49:37.000Z) https://detail.chiebukuro.yahoo.co.jp/qa/question_detail/q1329169608

[3]

Thai honorifics - Wikipedia (2024-06-25T22:41:33.000Z, 2024-07-01T13:50:36.096Z) https://en.wikipedia.org/wiki/Thai_honorifics

While kinship terms continued to be used, a royal vocabulary known as "raja-sap" (Thai: ราชาศัพท์; RTGS: Rachasap) emerged.