TSUMUGU · TOCFL 1 (est.) · 字
館
ㄍㄨㄢˇ · guǎn
noun — a public building: lodging, restaurant, hall (旅館, 飯館, 圖書館)
字源 FORM — what the parts do
Tguān → guǎn
Food (食) laid on for guests — a guesthouse with provisions. 官 guān carries the sound, shifted in tone to guǎn. From the lodging that fed travellers comes every public hall: 旅館、飯館、圖書館、大使館.
故事 STORY — a scene to remember it by
客舍備好飯食（食），官（官）家的驛站留客人過夜。
The guesthouse lays out food (食); the official (官) post-station keeps the traveller for the night.
字源記憶法
意 · Meanings
(本義)客舍、館舍— a guesthouse, lodging
→旅館、飯館、酒館— inn, restaurant常用
⇒圖書館、博物館— library, museum (a public hall)常用
⇒大使館、領事館— embassy, consulate常用
(本義) original meaning · → ⇒ each arrow = one more step of extension