躺椅 Origin — Chinese Character Wiki

tǎngyǐ

recliner

tǎng lie down

Phonosemantic compound. 身 represents the meaning and 尚 represents the sound.

身 Meaning component

shēn body

尚 Sound component

shàng, shang esteem

	Old Chinese
Zhengzhang	tʰaːŋʔ

Phonosemantic compound. 木 represents the meaning and 奇 represents the sound.

木 Meaning component

mù tree

奇 Sound component

qí strange

Change in sound

椅 and 奇 don't sound similar in modern Mandarin due to historical phonetic changes. They were more similar in Middle Chinese.
椅 'jeX
奇 kje

Regular Modern

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	Middle Chinese	Old Chinese	Gloss
Baxter-Sagart	'jeX	Cə.q(r)ajʔ	chair

《說文》：“椅，梓也。从木，奇聲。”