eccentricity; crankiness
Refers to a person's odd, stubborn, or quirky personality trait; often used for mild, harmless peculiarities.
I've gotten used to his eccentricities.
That author's crankiness shows in his works.
Compound of 偏 (へん, 'biased, inclined') and 癖 (へき, 'habit, tendency'). The exact historical derivation is uncertain, but the combination naturally yields the meaning of a biased or peculiar habit.