slice (v.)youdaoicibaDictYouDict[slice 词源字典]
late 15c., from Middle French esclicier, from Old French escliz (see slice (n.)). Golfing sense is from 1890. Related: Sliced; slicing. Sliced bread introduced 1958; greatest thing since ... first attested 1969.
No matter how thick or how thin you slice it it's still baloney. [Carl Sandburg, "The People, Yes," 1936]
[slice etymology, slice origin, 英语词源]
slicer (n.)youdaoicibaDictYouDict
1520s, agent noun from slice (v.).
slick (v.)youdaoicibaDictYouDict
Old English -slician (in nigslicod "newly made sleek"), from Proto-Germanic *slikojan, from base *slikaz (cognates: Old Norse slikr "smooth," Old High German slihhan "to glide," German schleichen "to creep, crawl, sneak," Dutch slijk "mud, mire"), from PIE *sleig- "to smooth, glide, be muddy," from root *(s)lei- "slimy" (see slime (n.)). Related: Slicked; slicking.
slick (n.)youdaoicibaDictYouDict
1620s, a kind of cosmetic, from slick (v.). Meaning "smooth place on the surface of water caused by oil, etc." is attested from 1849. Meaning "a swindler, clever person" is attested from 1959.
slick (adj.)youdaoicibaDictYouDict
early 14c., "smooth, glossy, sleek" (of skin or hair); sense of "clever in deception" is first recorded 1590s; that of "first-class, excellent" is from 1833. Related: Slickly; slickness.
slicker (n.)youdaoicibaDictYouDict
1851, "tool for smoothing leather," from slick (v.). Meaning "waterproof raincoat" is from 1884; sense of "clever and crafty person" is from 1900.
slidyoudaoicibaDictYouDict
past tense and past participle of slide (v.).
slide (v.)youdaoicibaDictYouDict
Old English slidan (intransitive, past tense slad, past participle sliden) "to glide, slip, fall, fall down;" figuratively "fail, lapse morally, err; be transitory or unstable," from Proto-Germanic *slidan "to slip, slide" (cognates: Old High German slito, German Schlitten "sleigh, sled"), from PIE root *sleidh- "to slide, slip" (cognates: Lithuanian slystu "to glide, slide," Old Church Slavonic sledu "track," Greek olisthos "slipperiness," olisthanein "to slip," Middle Irish sloet "slide").

Meaning "slip, lose one's footing" is from early 13c. Transitive sense from 1530s. Phrase let (something) slide "let it take its own course" is in Chaucer (late 14c.). Sliding scale in reference to payments, etc., is from 1842.
slide (n.)youdaoicibaDictYouDict
1560s, from slide (v.). As a smooth inclined surface down which something can be slid, from 1680s; the playground slide is from 1890. Meaning "collapse of a hillside, landslide" is from 1660s. As a working part of a musical instrument from 1800 (as in slide-trombone, 1891). Meaning "rapid downturn" is from 1884. Meaning "picture prepared for use with a projector" is from 1819 (in reference to magic lanterns). Baseball sense is from 1886. Slide-guitar is from 1968.
slide-rule (n.)youdaoicibaDictYouDict
also slide rule, mathematical calculating tool, 1838, from slide (v.) + rule (n.). So called for its method of operation. Earlier sliding-rule (1660s).
slider (n.)youdaoicibaDictYouDict
1520s, "skater," agent noun from slide (v.). As a type of terrapin, from 1877; as a type of baseball pitch, 1936.
slight (adj.)youdaoicibaDictYouDict
early 14c., "flat, smooth; hairless," probably from a Scandinavian source akin to Old Norse slettr "smooth, sleek," from Proto-Germanic *slikhtaz (cognates: Old Saxon slicht; Low German slicht "smooth, plain common;" Old English -sliht "level," attested in eorðslihtes "level with the ground;" Old Frisian sliucht "smooth, slight," Middle Dutch sleht "even, plain," Old High German sleht, Gothic slaihts "smooth"), probably from a collateral form of PIE *sleig- "to smooth, glide, be muddy," from root *(s)lei- "slimy" (see slime (n.)).

Sense evolution probably is from "smooth" (c. 1300), to "slim, slender; of light texture," hence "not good or strong; insubstantial, trifling, inferior, insignificant" (early 14c.). Meaning "small in amount" is from 1520s. Sense of German cognate schlecht developed from "smooth, plain, simple" to "bad, mean, base," and as it did it was replaced in the original senses by schlicht, a back-formation from schlichten "to smooth, to plane," a derivative of schlecht in the old sense [Klein].
slight (v.)youdaoicibaDictYouDict
c. 1300, "make plain or smooth," from slight (adj.) Meaning "treat with indifference" (1590s) is from the adjective in sense of "having little worth." Related: Slighted; slighting.
slight (n.)youdaoicibaDictYouDict
1550s, "small amount or weight," from slight (v.). Meaning "act of intentional neglect or ignoring out of displeasure or contempt" is from 1701, probably via 17c. phrase make a slight of (1610s).
slightly (adv.)youdaoicibaDictYouDict
1520s, "slenderly;" 1590s, "in a small degree," from slight (adj.) + -ly (2).
slim (adj.)youdaoicibaDictYouDict
1650s, "thin, slight, slender," from Dutch slim "bad, sly, clever," from Middle Dutch slim "bad, crooked," from Proto-Germanic *slembaz "oblique, crooked" (cognates: Middle High German slimp "slanting, awry," German schlimm "bad, cunning, unwell"). In English 17c. also sometimes with a sense "sly, cunning, crafty." Related: Slimly; slimness. With obsolete extended adjectival forms Slimsy "flimsy, unsubstantial" (1845); slimikin "small and slender" (1745). Slim Jim attested from 1887 in sense of "very thin person;" from 1902 as a type of slender cigar; from 1975 as a brand of meat snack.
slim (v.)youdaoicibaDictYouDict
1808, "to scamp one's work, do carelessly or superficially," from slim (adj.). Meaning "to make slim" (a garment, etc.) is from 1862; meaning "reduce (one's) weight" is from 1930. Related: Slimmed; slimming.
slime (n.)youdaoicibaDictYouDict
Old English slim "slime," from Proto-Germanic *slimaz (cognates: Old Norse slim, Old Frisian slym, Dutch slijm "slime, phlegm," German Schleim "slime"), probably related to Old English lim "birdlime; sticky substance," from PIE root *(s)lei- "slimy, sticky, slippery" (cognates: Sanskrit linati "sticks, stays, adheres to; slips into, disappears;" Russian slimak "snail;" Old Church Slavonic slina "spittle;" Old Irish sligim "to smear," leinam "I follow," literally "I stick to;" Welsh llyfn "smooth;" Greek leimax "snail," limne "marsh, pool, lake," alinein "to anoint, besmear;" Latin limus "slime, mud, mire," linere "to daub, besmear, rub out, erase"). As an insult to a person from mid-15c. Slime-mold is from 1880.
slime (v.)youdaoicibaDictYouDict
"to cover with slime," 1620s, from slime (n.). Related: Slimed; sliming.
slimming (adj.)youdaoicibaDictYouDict
"producing an appearance of thinness," 1925, present participle adjective from slim (v.).