convulsive
UK[kənˈvʌlsɪv]US[kənˈvʌlsɪv]
adj
Relating to or causing a sudden, violent, irregular movement of the body, caused by involuntary contraction of muscles.
adj
Resembling or characteristic of a convulsion in being sudden, violent, or uncontrollable.
Morpheme Breakdown
con
vuls
ive
con
together
vuls
to pull, to tear
ive
adjective suffix
Etymology
The word 'convulsive' originates from the Latin verb convellere, meaning "to tear loose, to pull violently." This verb is a composite of the intensive prefix con- ("together, thoroughly") and vellere ("to pull, to pluck"). The core imagery is of a violent, wrenching, or tearing motion. Over time, this literal sense of being "violently pulled" evolved into the medical and figurative English meaning, describing sudden, involuntary, and violent muscular contractions or any similarly jerky, uncontrolled action or event.
Analysis
Structure: con (together) + vuls (to pull, to tear) + ive (adjective suffix)
- con: A Latin prefix meaning "together, with, thoroughly."
- vuls: A Latin root from the verb vellere, meaning "to pull, to pluck, to tear."
- ive: A Latin-derived suffix forming adjectives meaning "of the nature of, tending to."
Examples
The patient suffered from convulsive seizures.
She let out a convulsive sob, her whole body shaking.
The economy went through a period of convulsive change.