納言

Chinese Wikipedia has an article on:

納言 / 纳言

Wikipedia ^zh

Probably coined by the Xin dynasty emperor Wang Mang.

納言

1. (obsolete, historical) a name of various ancient Chinese government offices

Japanese Wikipedia has an article on:

納言

Wikipedia ^ja

The 音読み (on'yomi, “Sino-Japanese reading”) of monomōsu-tsukasa below.

• (Tokyo) なごん (Atamadaka – )^[1]
• IPA^(key):

納(な)言(ごん) • (nagon) 

1. (politics, historical) an umbrella term for 大納言 (dainagon), 中納言 (chūnagon) and 少納言 (shōnagon)
2. (politics, historical) in the early Meiji period, a short-lived government position acting on behalf of the 太政大臣 (dajō-daijin) while its holder is in absentia

• 四(し)納(な)言(ごん) (shinagon)

/napu ɡon/ → /naɸuɡon/ → /nauɡon/ → /nɔːɡon/ → /noːɡon/

Attested in the 色葉字類抄 (Iroha Jiruishō).

A variant 音読み (on'yomi, “Sino-Japanese reading”) of monomōsu-tsukasa below, possibly influenced by Middle Chinese 納言 (MC nop ngjon).

納(のう)言(ごん) • (nōgon) ^{←なふごん (nafugon)?}

1. (politics, historical, rare) an umbrella term for 大納言 (dainagon), 中納言 (chūagon) and 少納言 (shōnagon)

From Old Japanese.

Compound of 物申す (monomōsu, “to advise or complain to a superior”) +‎ 司 (tsukasa, “official”).

The kanji spelling is an orthographic borrowing from Chinese 納言 / 纳言 (nàyán).

納言(ものもうすつかさ) • (monomōsu-tsukasa) ^{←ものまうすつかさ (monomausutukasa)?}

1. (politics, historical, archaic) an administrative official in the 太政官 (Ōimatsurigoto no Tsukasa) under the 律令 (Ritsuryō) system

• 大(おおい)納言(ものもうすつかさ) (ōi monomōsu-tsukasa, “upper counselor”)
• 中(なかの)納言(ものもうすつかさ) (naka no monomōsu-tsukasa, “middle counselor”)
• 少(すない)納言(ものもうすつかさ) (sunai monomōsu-tsukasa, “lesser counselor”)

From 物申す (mo₂no₂mawosu, “to advise or complain to a superior”) +‎ 司 (tukasa, “official”).

The kanji spelling is an orthographic borrowing from Middle Chinese 納言 (MC nop ngjon).

納言 (mono₂mawosu-tukasa) (kana ものまをすつかさ)

1. an administrative official in the 太政官 (Opoki₁maturigo₂to₂ no₂ Tukasa) under the 律令 (Ritsuryō) system
   • 720, Nihon Shoki, Emperor Tenmu; ninth year in autumn, seventh month:

     戊戌、納言兼宮内卿五位舍人王、病之臨死。

     On the day of the Earth Dog, the official and nobleman of the Imperial Palace, fifth rank Töneri nö Opogimi, fell ill and was close to death.

• Japanese: 納言 (monomōsu-tsukasa, nagon)