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。 [Traditional Chinese poetry, trad.]

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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。 [Traditional Chinese poetry, simp.]

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. [Pinyin]

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 [Revised Mandarin Chinese Dictionary] (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 [Taiwanese-Japanese Dictionary]‎^[1] (overall work in Hokkien and Japanese), Taihoku: Government-General of Taiwan, →OCLC

• IPA^(key): [kʲii]

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 [Nihon Kokugo Daijiten]‎^[2] (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