Quiz: Remember the definition of mal de mer?
c.1400, from Old French spasme, from Latin spasmus "a spasm," from Greek spasmos "a spasm, convulsion," from span "draw up, tear away, contract violently, pull," from PIE *spe- "stretch." Figurative sense of "a sudden convulsion" (of emotion, politics, etc.) is attested from 1817.
1900, from spasm (n.). Related: Spasmed; spasming.
tonic spasm n.
A continuous involuntary muscular contraction. Also called entasia.
A sudden involuntary contraction of a muscle or group of muscles.
A muscle spasm.