In a manner that guides or provides direction; with the quality or style of guiding.
From guide plus -ing plus -ly (creating an adverb from a verb or adjective), though this word is quite rare in modern usage.
The formation 'guidingly' requires stacking two suffixes (-ing and -ly), which is possible but creates awkward words—most speakers would simply say 'in a guiding manner' instead, showing how suffix stacking has limits.
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