onanism
Word family
- onanistnounC2
- onanisticadjectiveC2
Synonym discussion
Sense: noun/1
Onanism is a formal and somewhat old-fashioned word for masturbation. Masturbation is the normal neutral term in modern English and works in medical, educational, and everyday contexts. Self-pleasure is softer and more indirect, so people often choose it when they want to sound less clinical. Self-stimulation is more technical and may appear in medical or psychological writing. Autoeroticism is broader and more academic, because it can refer to sexual excitement centered on oneself, not only the physical act. Use onanism mainly in older texts, religious discussion, or very formal writing. For example, a doctor would usually write masturbation in a leaflet, while a historian might quote onanism from a nineteenth-century sermon.
Etymology
Onanism comes from Onan, a figure in the Book of Genesis. Later writers turned his name into a noun for masturbation and, in an older sense, for withdrawal before ejaculation. The word reached English through learned Latin and French forms built from the biblical name.