French word astucieux comes from French astuce, French -eux (-ous, -y.)

Detailed word origin of astucieux

Dictionary entry	Language	Definition
astuce	French (fra)	Shrewdness, subtlety, astuteness. A tip or piece of advice. A trick, as a clever way of accomplishing something.
-eux	French (fra)	-ous, -y.
astucieux	French (fra)	Astute.

Words with the same origin as astucieux