2 words for DIILSTY 6-letter words

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6 letters (2)

On the back of an animal
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O
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Hint 1 meaning
Pertaining to, or situated near, the back, or dorsum, of an animal or of one of its parts; notal; tergal; neural; as, the dorsal fin of a fish; the dorsal artery of the tongue; -- opposed to ventral.
Hint 2 anagram
OALDRS
Hint 3 another clue
BACK ___!
4 +1