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CUHK doesn't expound the semantic shift. Doesn't 寸 contradict 耐? Humans usually "endure" or "resist" what's hefty and strong, not objects that are "tiny" and merely "about 3 cm".

Etymologies

」本作「」,古刑名,參見「」。後引伸有忍、受之義。《廣韻》:「耐,忍也。」《荀子.仲尼》:「能耐任之,則慎行此道也。」

Wiktionary has the same etymology, but I quote Yellowbridge for it's trustworthier.

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    Did you actually read CUHK's explanation? It says that it is a 古刑名, the name of a kind of sentence (punishment) in the past. If you look at 耏, it tells you exactly what that sentence is. Now the "endure" meaning should make sense, right? – Sweeper Aug 31 '20 at 13:08
  • I think you should read CUHK's explanation of 寸. You're making a lot of assumptions on modern literal meanings, when that's not how character components work. As part of a character, if it is contributing meaning (not sound), 寸 means the same thing as 又. – dROOOze Sep 01 '20 at 13:57
  • Quote:- "Humans usually "endure" or "resist" what's hefty and strong, not objects that are "tiny" and merely "about 3 cm" Well, a bullet is less than 3 cm. Let's see some humans "endure" that, without a bullet-resistant vest of course. – Wayne Cheah Sep 01 '20 at 15:33

2 Answers2

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「耐」 (Baxter-Sagart OC: /*nˤə-s/, minor punishment involving the shaving of a beard > to endure) is comprised from doubly semantic and phonetic 「而」 (/*nə/, picture of a beard, now written 「髵」) and semantic 「寸」 (picture of a hand > actions of the hand).


「寸」 rarely or never means inch as part of other characters - it is derived from 「又」 (picture of a hand) with an additional mark pointing to this wrist area. As a stand-alone character, this meaning originally referred to the area where the pulse is taken (Chinese medicine: 寸口). As part of other characters, it plays the same meaning role as 「又」 (if it is used for meaning, not sound). Observe, for example,

dROOOze
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There is no complete explanation on this question. But we could follow some explanations in history and fill the missing links ourselves.

  1. The original character of 耐 is 耏.
  2. The original meaning is not related to 寸, and not "endure" either.
  3. 而 is a pictorial word about facial hairs.

說文, a dictionary written in 100 CE, has an entry about 耏, i.e. "耏,罪不至髡也。从而从彡。". A longer version is written in 說文解字注, "耏,罪不至髡也。从而从彡。耐,或从寸。諸法度字从寸。". This means 耐 is a variant form of 耏.

耏 is a penalty of removing one's hairs beside ears. It is lighter penalty than 髡, i.e. removing all hairs. The sentence "諸法度字从寸" indicates that later 耐 replaced 耏 for the meaning in laws. We might speculate that 寸 is a kind of measurement and further relates it to laws. 耐 finally wins the favourite form in the long history.

The meaning of "endure" is derivative. We could make a guess that one bearing this penalty must bear some kinds of humiliation. This might be the reason it derives the meanings of "bear, endure, resist and patient".

OmniBus
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