Hypochondria

имя существительное ипохондрия

Большой англо-русский словарь

Hypochondria

noun Etymology: New Latin, from Late Latin, plural, upper abdomen (formerly regarded as the seat of hypochondria), from Greek, literally, the parts under the cartilage (of the breastbone), from hypo- + chondros cartilage extreme depression of mind or spirits often centered on imaginary physical ailments; specifically hypochondriasis

Merriam-Webster's Collegiate Dictionary