What does nutate mean?
Nutate is a formal verb meaning to nod or move one’s head slightly. It can also describe a body or axis that oscillates, wavers, or repeatedly changes position around a central point. The word is not common in ordinary conversation, but it is useful in scientific, literary, and highly formal contexts. “Nutation” is its best-known related noun: in astronomy, it refers to the small periodic movements of a body’s axis, while in anatomy and related fields it can describe a nodding or oscillatory movement. Because nutate conveys a more measured or technical movement than the everyday verb “nod,” it is often chosen when the motion is subtle, repeated, or physically descriptive. The word ultimately comes from Latin, where its root was associated with nodding or swaying.
To nod or move the head slightly.
"He nutated his head in acknowledgment."
Rare and formal; more common in literary or technical descriptions than in everyday speech.
To oscillate or waver slightly, especially around a central position.
"The axis nutates as the object rotates."
Used in technical contexts, especially astronomy and mechanics.
In astronomy, a body can nutate: Earth’s axis makes small, regular oscillations beyond its broader precession-like motion.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does nutate come from?
Nutate comes from Latin nutare, meaning “to nod” or “to sway.” English borrowed the verb in the 17th century, and the related noun “nutation” developed from the same Latin stem. The word was also adapted in scientific language for small periodic movements, particularly the oscillation of a body or axis.
Related word forms
How nutate is actually used
Nutate is uncommon in everyday English and is chiefly formal or technical. In astronomy and mechanics, it describes a small periodic movement or oscillation.
Easily confused with nutate
To nutate is to nod or oscillate, whereas to mutate is to undergo a change, especially a genetic or biological one.