affection

appetite, fancy, favor, like, liking, partiality, preference, relish, taste

craving, crush, desire, infatuation, longing, lust, yearning

ardor, eagerness, enthusiasm, fervor, zeal

appreciation, esteem, estimation, regard, respect

adoration, adulation, deification, idolatry, idolization, worship

allegiance, faithfulness, fealty, fidelity, loyalty, steadfastness

contagion, contagious disease

contagium, infection

attack, bout, fit, spell

debility, decrepitude, feebleness, frailness, lameness, sickliness, unhealthiness, unsoundness, unwellness, weakness

malaise, matter, pip

epidemic, pest, pestilence, plague

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

badge, indication, sign

emblem, symbol, token

charm, grace

excellence, merit, virtue

eccentricity, idiosyncrasy, oddity, quirk

individuality, singularity, uniqueness