Because there are so few cognates between European languages and Chinese we must make do with link-words, which are words in one language which sound alike and have similar meanings.
绝对 decisive, decided, decidedly.
可靠 can count on, i.e. reliable
绝 is the image of a piece of (coloured) rope which is cut into a string. It’s the idea of careful measure and cutting (=lat. cision)
对means “right” “right at” “to” or even “regarding” — two hands meet at the RIGHT point.
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