KeReN kuf-resh-nun is a homonym with a lot of meaning: foundation, corner, horn, ray / beam of light https://translate.google.co.il/?hl=en#iw/en/%D7%94%D7%A4%D7%95%D7%9AHaFuKH heh-peh-vav(oo)-khaf also has many meanings, but all related to reverse, turn over / turn back https://translate.google.co.il/?hl=en#iw/en/%D7%94%D6%B4%D7%A4%D6%BC%D7%95%D6%BC%D7%9AThe meanings that make sense in combination are: ray of light + solstice (the shortest day when days begin to get longer, or the longest day when they begin to get shorter). Keren-happuch was probably born on the day of a solstice. Keren-happuch may be a cool name, but its definitely not kohl.
I wouldn't be sure, but perhaps hollowed-out animal horns were used as containers to store things like eyeshadow and cosmetics. It seems the most likely explanation to me.
― Anonymous User 12/20/2009
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Created from 2 elements: "Keren" meaning "horn" and "happuch" meaning "eye-shadow" or "face paint".