Hot answers tagged etymology
The origin form of this word 家 comes from 甲骨文 or 金文 and here is some explanation: 金文家：古家字從 宀從豕；凡祭，士以羊豕，古者庶士庶人無廟，祭於寢（亦食居之所，故從宀），陳豕（已熟者）於屋下也。 so the ancient scholars use a goat or pig for a fete in where they sleep and eat (宀), so 家 means put a cooked pig under the house Hope that answers your question
Coderzelf's point about the origin of 脑洞 is correct (At least 脑洞 comes from 脑补 is the most accepted view) , but his explanation for 脑补 isn't so accurate. Though sometimes 脑补 is used to express "figure out the actual meaning of something very implicit", more frequently, this phrase is used for deliberate delusions. Another possible origin of 脑洞 is it comes ...
As you can see here, 家 was already present in 甲骨文 in essentially similar form. Thus 豕 is not an abbreviation for 豭. Whether 豕 has phonetic content is difficult or impossible to determine. One would have to rely on the judgements of a 甲骨文 specialist/historical linguist.
I think that's because people feed pigs at home. this place will not move, but people have to go out to plant rice or something, this place they feed pigs is a place they will come back to rest and live, so this is home. just guess.
It comes from Nao(3)Bu(3) 脑补，which means someone says something very implicitly and you need to figure out the picture in your brain or the actual meaning of it in your brain. so 脑补 can be literally understood as "Fill the holes in your brain" and thus 脑洞大开 means some phrase needs you really working hard in "脑补"
In terms of the individual 漢字 (characters), there's the classic 說文解字 (Shuowen Jiezi) written in the 1st to 2nd century AD, which is the first and the most authoritative Chinese dictionary to attempt to trace the origin and evolution of each character. An online version is available here, or ZDict as mentioned above also contains the Shuowen entry. The ...
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