opposed, biased
溂 centers on a stance of opposition or bias: being set against something or leaning in a particular direction. The two meanings are closely related, with bias implying a tilted, non-neutral position.
溂 is a rare character. It combines 氵 (water) with 剌, which likely contributes the sound. The exact historical development and original semantic role of water are uncertain.
Water 氵 beside 剌: imagine a stream of water that is biased, always flowing against one bank, opposed to the other side.
For ラツ, picture a biased judge who always rules against rats: rats -> ラツ, and the judge is opposed to them.
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