Here you will find one or more explanations in English for the word Unshale.
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Unshale
Unshale Un*shale", v. t. [1st pref. un- + shale.]
To strip the shale, or husk, from; to uncover. [Obs.]
I will not unshale the jest before it be ripe.
--Marston.
Meaning of Unshale from wikipedia