期頤

From the Book of Rites, Book 1 (《禮記·曲禮上》):

人生十年曰幼，學。二十曰弱，冠。三十曰壯，有室。……百年曰期，頤。

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人生十年曰幼，学。二十曰弱，冠。三十曰壮，有室。……百年曰期，颐。

From: The Book of Rites, c. 4^th – 2^nd century BCE, translated based on James Legge's version

Rén shēng shí nián yuē yòu, xué. Èrshí yuē ruò, guàn. Sānshí yuē zhuàng, yǒu shì....... Bǎinián yuē qī, yí.

When one is ten years old, we call him a boy; he goes (out) to school. When he is twenty, we call him a youth; he is capped. When he is thirty, we say, 'He is at his maturity;' he has a wife. At a hundred, he is called a centenarian, and has to be fed.

期頤

1. (literary, of a person) one hundred years of age

• “期頤”, in 重編國語辭典修訂本 (in Chinese), National Academy for Educational Research (Taiwan), 2021.
• 小川尚義 (OGAWA Naoyoshi), editor (1931–1932), “期頤”, in 臺日大辭典 ‎ (overall work in Hokkien and Japanese), Taihoku: Government-General of Taiwan, →OCLC

• IPA^(key):

期(き)頤(い) • (kii) 

1. (literary, of a person) one hundred years of age

• “期頤”, in 日本国語大辞典 ‎ (in Japanese), 2nd edition, Tokyo: Shogakukan, 2000-2002, released online 2007, →ISBN, concise edition entry available here

期頤 • (gii) (hangeul 기이)

1. hanja form^? of 기이