宿
부수: 宀
획수: 11획
宿 has the meanings overnight, lodging, long-time and constellation.

宿 = 宀 + 亻 + 百
X = semantic + semantic + semantic (distortion)
• 宿 depicts a person 亻 and a mat 百 under a roof 宀.
• 宀 depicts the roof of a building and means ‘building’.
• 亻 depicts a person and is a variant of 人.
• 百 is suggested to be a distortion of 肉 which was used to depict a mat/bedding and represents resting. This gives the character its meaning of ‘lodging’ and ‘shelter’.
Evolution:
宿 = to sleep on a mat in a building ➔ overnight ➔ lodging ➔ constellation
宿 = to sleep on a mat in a building ➔ overnight ➔ long-time
How the meaning ‘constellation’ arrives from 宿 is unclear. One suggestion is that constellations are the ‘lodging places’ of the sun throughout the year.
Mnemonic
The pictorial representation of a person 亻 and bedding 肉 under a roof 宀 is easy to remember. Imagine a large inn with 100 百 mats for its travellers.
Vocabulary
宿題 | 숙제 | homework |
宿醉 | 숙취 | a hangover |
宿直 | 숙직 | night duty |
宿泊 | 숙박 | lodging |
宿所 | 숙소 | accommodations |
宿食 | 숙식 | meals and lodging |
寄宿舍 | 기숙사 | a dormitory |
旅人宿 | 여인숙 | an inn |
投宿客 | 투숙객 | guest; lodger |
露宿人 | 노숙인 | a homeless person |
宿願 | 숙원 | a long-cherished wish |
宿患 | 숙환 | a chronic disease |
宿根 | 숙근 | a perennial root |
宿緣 | 숙연 | karma |
宿命 | 숙명 | fate; destiny |
Other resources
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Wikitionary
Unihan Database
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CC-Canto
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The Chinese University of Hong Kong (etymology)
Chinese Boost
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JLearn.net
Sakura
The Kanji Map
Sentence Search
Immersion Kit
Vietnamese
Bibliography
— Daum 사전, [s.v. 宿].
— Grant, B.K. (1982). A Guide To Korean Characters: Reading and Writing Hangul and Hanja, [s.v. 913]. Seoul: Hollym.
— Outlier Dictionary of Chinese Characters, [s.v. 宿, 宀, 亻, 百].
— Seely, C., Henshall, K.G., & Fan, J. (2016). The Complete Guide to Japanese Kanji: Remembering and Understanding the 2,136 Standard Japanese Characters, [s.v. 327]. Singapore: Tuttle Publishing.