Meaning of hypochondriacism in English:
hypochondriacism
noun
rare Pronunciation
hypochondriacism
/ˌhʌɪpə(ʊ)kənˈdrʌɪəsɪz(ə)m/ /ˌhɪpə(ʊ)kənˈdrʌɪəsɪz(ə)m/ Origin
Late 17th century; earliest use found in George MacKenzie (?1638–1691), lawyer and politician. From hypochondriac + -ism.