For example, hyperbolic is a word for a something related to hyperbole. There is a word that's an adjective or a noun for these type of words and I cannot find one for this one. Also, parabola > parabolic. I was thinking of aphosis but that is not a word, I think.
closed as off-topic by Alan Carmack, ColleenV♦, Brian Tompsett - 汤莱恩, stangdon, Nihilist_Frost Jun 12 '16 at 3:04
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The word itself is derived from Greek: a means 'no' and photos means 'light'. That more or less fits with its meaning:
being the deep zone of an ocean or lake receiving too little light to permit photosynthesis
Not all adjectives in English have a corresponding noun which is in common use.