habitude

favor, one-sidedness, partisanship, prejudice

endowment, faculty, flair, genius, gift, knack, talent

addiction, appetite, fancy, fondness, like, liking, preference, taste

forte, speciality, specialty

convention, custom, habit, pattern, practice (also practise), routine, trick, way, wont

eccentricity, idiosyncrasy, kink, oddity, peculiarity, quirk, singularity

addiction

disposition

bent, inclination, proclivity, set, tendency, tenor, turn

bag, convention, form, mode, style

usage, use

deportment, manners, mores

drill, groove, jog trot, regime (also régime), regimen, rote, routine, rut

affectation, airs, pose

attribute, characteristic, mark, trait