spondylo-youdaoicibaDictYouDict[spondylo- 词源字典]
before vowels spondyl-, comb form meaning "vertebrae," from Greek spondylos "a vertebra," in plural "the backbone," variant of sphondylos, of uncertain origin.[spondylo- etymology, spondylo- origin, 英语词源]
spondylolisthesis (n.)youdaoicibaDictYouDict
medical Latin, from Greek spondylos (see spondylo-) + oliothesis "dislocation, slipping."
spondylosis (n.)youdaoicibaDictYouDict
1885, from Greek spondylos "vertebra" (see spondylo-) + -osis.
sponge (n.)youdaoicibaDictYouDict
Old English sponge, spunge, from Latin spongia "a sponge," also "sea animal from which a sponge comes," from Greek spongia, related to spongos "sponge," of unknown origin. "Probably a loanword from a non-IE language, borrowed independently into Greek, Latin and Armenian in a form *sphong-" [de Vaan]. The Latin word is the source of Old Saxon spunsia, Middle Dutch spongie, Old French esponge, Spanish esponja, Italian spugna.

In English in reference to the marine animal from 1530s. To throw in the sponge "quit, submit" (1860) is from prizefighting, in reference to the sponges used to cleanse the faces of combatants between rounds (compare later throw in the towel). Sponge-cake is attested from 1808.
sponge (v.)youdaoicibaDictYouDict
late 14c., "to soak up with a sponge," also (transitive) "to cleanse or wipe with a sponge," from sponge (n.). The slang sense of "to live in a parasitic manner, live at the expense of others" is attested from 1670s; sponger (n.) in this sense is from 1670s. Originally it was the victim who was the sponge (c. 1600), because he or she was being "squeezed." Intransitive sense "dive for sponges" is from 1881. Related: Sponged; sponging.
sponger (n.)youdaoicibaDictYouDict
1670s, "parasite," agent noun from sponge (v.) in figurative sense. As a job on a cannon crew, by 1828.
spongiform (adj.)youdaoicibaDictYouDict
"resembling a sponge," 1774, from Latin spongia "sponge" (see sponge (n.)) + forma "form, shape" (see form (n.)).
spongy (adj.)youdaoicibaDictYouDict
"soft, elastic," 1530s, from sponge (n.) + -y (2). Of hard material (especially bone) "open, porous," 1590s. Related: Sponginess.
sponsor (n.)youdaoicibaDictYouDict
1650s, from Late Latin sponsor "sponsor in baptism," in Latin "a surety, guarantee, bondsman," from sponsus, past participle of spondere "give assurance, promise solemnly" (see spondee). Sense of "person who pays for a radio (or, after 1947, TV) program" is first recorded 1931.
sponsor (v.)youdaoicibaDictYouDict
1884, "to favor or support," from sponsor (n.). Commercial broadcasting sense is from 1931. Related: Sponsored; sponsoring.
sponsorship (n.)youdaoicibaDictYouDict
1753, from sponsor (n.) + -ship.
spontaneity (n.)youdaoicibaDictYouDict
1650s, from French spontanéité or a native formation from spontaneous + -ity.
spontaneous (adj.)youdaoicibaDictYouDict
1650s, "occurring without external stimulus," from Late Latin spontaneus "willing, of one's free will," from Latin (sua) sponte "of one's own accord, willingly;" of uncertain origin. Related: Spontaneously; spontaneousness. Used earlier of persons and characters, with a sense "acting of one's own accord" (c. 1200). Spontaneous combustion first attested 1795. Spontaneous generation (the phrase, not the feat) attested from 1650s.
spoof (n.)youdaoicibaDictYouDict
"hoax, deception," 1889, from spouf (1884), name of a game invented by British comedian Arthur Roberts (1852-1933). Sense of "a parody, satirical skit or play" is first recorded 1958, from verb in this sense (1914).
spoof (v.)youdaoicibaDictYouDict
1889, "to hoax, deceive, trick;" from 1914 as "to parody or satirize;" see spoof (n.). Related: Spoofed; spoofing.
spook (n.)youdaoicibaDictYouDict
1801, "spectre, apparition, ghost," from Dutch spook, from Middle Dutch spooc "spook, ghost," from a common Germanic source (German Spuk "ghost, apparition," Middle Low German spok "spook," Swedish spok "scarecrow," Norwegian spjok "ghost, specter," Danish spøg "joke"), of unknown origin. According to Klein's sources, possible outside connections include Lettish spigana "dragon, witch," spiganis "will o' the wisp," Lithuanian spingu, spingeti "to shine," Old Prussian spanksti "spark."

Meaning "undercover agent" is attested from 1942. The derogatory racial sense of "black person" is attested from 1940s, perhaps from notion of dark skin being difficult to see at night. Black pilots trained at Tuskegee Institute during World War II called themselves the Spookwaffe.
spook (v.)youdaoicibaDictYouDict
1867, "to walk or act like a ghost," from spook (n.). Meaning "to unnerve" is from 1935. Related: Spooked; spooking.
spooky (adj.)youdaoicibaDictYouDict
1854, "frightening;" 1926, "easily frightened," from spook (n. or v.) + -y (2). Related: Spookily; spookiness.
spool (n.)youdaoicibaDictYouDict
early 14c., "wheel for winding thread upon," from Old North French spole, espole "a spool" (13c.), from Middle Dutch spoele "a spool," from Proto-Germanic *spolon (cognates: Norwegian and Swedish spole, Old High German spuola, German Spule "a spool, bobbin"), from PIE root *spel- "to cleave, split" (see spoil (v.)).
spool (v.)youdaoicibaDictYouDict
c. 1600, from spool (n.). Related: Spooled; spooling; spooler (1550s).