Where does “bias” come from?

bias (Dutch) comes from French biais, from Old Occitan biais — oblique direction.

Ancestry of “bias”, step by step

bias traces back through two separate lines of ancestry.

Step	Language	Word	Meaning
1	French	biais	means, way; angle, aspect, way; bias
2	Old Occitan	biais	oblique direction

Step	Language	Word	Meaning
1	English	Bias	One of the Seven Sages of Greece from Priene, living in the 6th century
2	Ancient Greek	Βίας	Bias