The Nippo Jisho (Japanese-Portuguese dictionary) from the beginning of the 17th century also listed the two pronunciations, 'daimyo' and 'taimei,' but there was no clear distinction in meaning, and both were used for major feudal lords.
17世紀初頭の日葡辞書にも「だいみょう」・「たいめい」の2音が掲載されているが、語義の区別は明確でなく、2音とも大領主としている。