Thanks for comment #11574.
But for evidence 2，⿰口釐 is attested in the photographic reproduction of the book. As both this form and the more common 喱 were used purely for phonetic transcription in this context, they were functionally interchangeable. Their concurrent usage in the source material confirms that this is a valid textual variant, thereby supporting its encoding. https://www.shidianguji.com/book/CADAL02081307/chapter/1lcim2bmceaeu?page_from=searching_page&paragraphId=7548201344226623527&keywords=%E4%B9%98%E9%A3%8E%2C%E9%A9%B6%2C%E4%B8%87%E5%B1%B1%2C%E4%B9%98%E9%A3%8E%E9%A9%B6%E5%87%BA%E8%80%81%E4%B8%87%E5%B1%B1&hightlightIndex=0&topicId=&version=3&contentMatch=1