slutty (adj.)youdaoicibaDictYouDict[slutty 词源字典]
c. 1400, "dirty, slovenly," from slut + -ish.[slutty etymology, slutty origin, 英语词源]
sly (adj.)youdaoicibaDictYouDict
c. 1200, "skillful, clever, dexterous," from Old Norse sloegr "cunning, crafty, sly," from Proto-Germanic *slogis (cognates: Low German slu "cunning, sly," German schlau), probably from base *slak- "to strike, hit" (see slay (v.)), with an original notion of "able to hit." Compare German verschlagen "cunning, crafty, sly," schlagfertig "quick-witted," literally "strike-ready," from schlagen "to strike." A non-pejorative use of the word lingered in northern English dialect until 20c. On the sly "in secret" is recorded from 1812. Sly-boots "a seeming Silly, but subtil Fellow" is in the 1700 "Dictionary of the Canting Crew."
slyly (adv.)youdaoicibaDictYouDict
c. 1200, from sly (adj.) + -ly (2).
slyness (n.)youdaoicibaDictYouDict
mid-14c., from sly (adj.) + -ness.
smack (n.1)youdaoicibaDictYouDict
"a taste, flavor, savor" especially a slight flavor that suggests something, from Old English smæc "taste; scent, odor," from Proto-Germanic *smak- (cognates: Old Frisian smek, Middle Dutch smæck, Dutch smaak, Old High German smac, German Geschmack, Swedish smak, Danish smag), from a Germanic and Baltic root *smeg- meaning "to taste" (cognates: Lithuanian smaguriai "dainties," smagus "pleasing"). Meaning "a trace (of something)" is attested from 1530s.
smack (n.4)youdaoicibaDictYouDict
"heroin," 1942, American English slang, probably an alteration of schmeck "a drug," especially heroin (1932), from Yiddish schmeck "a sniff."
smack (v.1)youdaoicibaDictYouDict
"make a sharp noise with the lips," 1550s, probably of imitative origin (see smack (v.2)). With adverbial force, "suddenly, directly," from 1782; extended form smack-dab is attested from 1892, American English colloquial (slap-dab is from 1886).
smack (n.3)youdaoicibaDictYouDict
single-masted sailboat, 1610s, probably from Dutch or Low German smak "sailboat," perhaps from smakken "to fling, dash" (see smack (v.2)), perhaps so-called from the sound made by its sails. French semaque, Spanish zumaca, Italian semacca probably are Germanic borrowings.
smack (v.2)youdaoicibaDictYouDict
"to slap a flat surface with the hand," 1835, from smack (n.) in this sense; perhaps influenced by Low German smacken "to strike, throw," which is likely of imitative origin (compare Swedish smak "slap," Middle Low German smacken, Frisian smakke, Dutch smakken "to fling down," Lithuanian smagiu "to strike, knock down, whip").
smack (v.3)youdaoicibaDictYouDict
mid-13c., "to smell (something"); mid-14c., "to taste (something), perceive by taste" (transitive); late 14c. "to have a taste, taste of" (intransitive), from smack (n.1). Compare Old English smæccan "to taste," Old Frisian smakia Middle Dutch smaecken, Old High German smakken "have a savor, scent, or taste," German schmecken "taste, try, smell, perceive." Sometimes also smatch. Now mainly in verbal figurative use smacks of ... (first attested 1590s). "Commonly but erroneously regarded as identical with [smack (n.2)], as if 'taste' proceeds from 'smacking the lips.'" [Century Dictionary]
smack (n.2)youdaoicibaDictYouDict
"smart, sharp sound made by the lips," 1560s, from smack (v.1). Meaning "a loud kiss" is recorded from c. 1600. Meaning "sharp sound made by hitting something with the flat of the hand" is from c. 1746.
smacker (n.)youdaoicibaDictYouDict
"money," c. 1918, American English slang, perhaps from smack (v.1) on notion of something "smacked" into the palm of the hand. Extended form smackeroo is attested from 1939.
smaik (n.)youdaoicibaDictYouDict
"mean or contemptible fellow," mid-15c., Scottish, now archaic, current c. 1450-c. 1900, perhaps cognate with Old High German smeichari, from smeken "to flatter."
small (adj.)youdaoicibaDictYouDict
Old English smæl "thin, slender, narrow; fine," from Proto-Germanic *smal- "small animal; small" (cognates: Old Saxon, Danish, Swedish, Middle Dutch, Dutch, Old High German smal, Old Frisian smel, German schmal "narrow, slender," Gothic smalista "smallest," Old Norse smali "small cattle, sheep"), perhaps from a PIE root *(s)melo- "smaller animal" (cognates: Greek melon, Old Irish mil "a small animal;" Old Church Slavonic malu "bad"). Original sense of "narrow" now almost obsolete, except in reference to waistline and intestines.
My sister ... is as white as a lilly, and as small as a wand. [Shakespeare, "Two Gentlemen of Verona," 1591]
Sense of "not large, of little size" developed in Old English. Of children, "young," from mid-13c. Meaning "inferior in degree or amount" is from late 13c. Meaning "trivial, unimportant" is from mid-14c. Sense of "having little property or trade" is from 1746. That of "characterized by littleness of mind or spirit, base, low, mean" is from 1824. As an adverb by late 14c.

Small fry, first recorded 1690s of little fish, 1885 of insignificant people. Small potatoes "no great matter" first attested 1924; small change "something of little value" is from 1902; small talk "chit-chat, trifling conversation" (1751) first recorded in Chesterfield's "Letters." Small world as a comment upon an unexpected meeting of acquaintances is recorded from 1895. Small-arms, indicating those capable of being carried in the hand (contrasted to ordnance) is recorded from 1710.
small (n.)youdaoicibaDictYouDict
early 13c., "small person or animal," from small (adj.). From c. 1300 as "persons of low rank" (opposed to great); late 15c. as "the small part" of something (such as small of the back, 1530s).
small beer (n.)youdaoicibaDictYouDict
1560s, originally "weak beer;" used figuratively of small things or trifling matters. Small with the meaning "of low alcoholic content" is attested from mid-15c.
small-time (adj.)youdaoicibaDictYouDict
1910, originally theater slang for lower-salaried circuits, or ones requiring more daily performances; from noun phrase (also 1910). Compare big time.
small-town (adj.)youdaoicibaDictYouDict
"unsophisticated, provincial," 1824, from noun phrase, from small (adj.) + town.
smallish (adj.)youdaoicibaDictYouDict
late 14c., from small (adj.) + -ish.
smallmouth (n.)youdaoicibaDictYouDict
1880, short for small-mouth (black) bass (1878); from small (adj.) + mouth (n.).