mound (v.)youdaoicibaDictYouDict[mound 词源字典]
1510s, "to enclose with a fence;" c. 1600 as "to enclose with an embankment;" see mound (n.). From 1859 as "to heap up." Related: Mounded; mounding.[mound etymology, mound origin, 英语词源]
mount (v.)youdaoicibaDictYouDict
c. 1300, "to mount a horse;" mid-14c., "to rise up, ascend; fly," from Old French monter "to go up, ascend, climb, mount," from Vulgar Latin *montare, from Latin mons (genitive montis) "mountain" (see mount (n.)). Meaning "to set or place in position" first recorded 1530s. Sense of "to get up on for purposes of copulation" is from 1590s. Related: Mounted; mounting.
mount (n.2)youdaoicibaDictYouDict
"that on which something is mounted," 1739, from mount (v.). The colloquial meaning "a horse for riding" is first recorded 1856.
mount (n.1)youdaoicibaDictYouDict
"hill, mountain," mid-13c., from Anglo-French mount, Old French mont "mountain;" also perhaps partly from Old English munt "mountain;" both the Old English and the French words from Latin montem (nominative mons) "mountain," from PIE root *men- "to stand out, project" (cognates: Latin eminere "to stand out;" Sanskrit manya "nape of the neck," Latin monile "necklace;" Old Irish muin "neck," Welsh mwnwgl "neck," mwng "mane;" Welsh mynydd "mountain").
mountain (n.)youdaoicibaDictYouDict
c. 1200, from Old French montaigne (Modern French montagne), from Vulgar Latin *montanea "mountain, mountain region," noun use of fem. of *montaneus "of a mountain, mountainous," from Latin montanus "mountainous, of mountains," from mons (genitive montis) "mountain" (see mount (n.)).

Until 18c., applied to a fairly low elevation if it was prominent (such as Sussex Downs, the hills around Paris). As an adjective from late 14c. Mountain dew "raw and inferior whiskey" first recorded 1839; earlier a type of Scotch whiskey (1816); Jamieson's 1825 "Supplement" to his Scottish dictionary defines it specifically as "A cant term for Highland whisky that has paid no duty." Mountain-climber recorded from 1839; mountain-climbing from 1836.
mountaineer (n.)youdaoicibaDictYouDict
c. 1600, "dweller in mountains," from mountain + -eer. Verb meaning "to be a mountain-climber" is from 1803.
mountainous (adj.)youdaoicibaDictYouDict
late 14c., from Old French montagneux, from Vulgar Latin *montaneosus "mountainous," from *montanea (see mountain).
mountebank (n.)youdaoicibaDictYouDict
"a doctor that mounts a bench in the market, and boasts his infallible remedies and cures" [Johnson], 1570s, from Italian montambanco, contraction of monta in banco "quack, juggler," literally "mount on bench" (to be seen by crowd), from monta, imperative of montare "to mount" (see mount (v.)) + banco, variant of banca "bench" (see bank (n.2)). Figurative and extended senses from 1580s.
mounted (adj.)youdaoicibaDictYouDict
1580s, "on horseback," past participle adjective from mount (v.). From 1854 as "set up for display."
Mountie (n.)youdaoicibaDictYouDict
1914, member of the Royal Canadian (originally North-west) Mounted Police, formed 1873 to keep order in the former Hudson's Bay Company lands. Also see -ie.
mourn (v.)youdaoicibaDictYouDict
Old English murnan "to mourn, bemoan, long after," also "be anxious about, be careful" (class III strong verb; past tense mearn, past participle murnen), from Proto-Germanic *murnan "to remember sorrowfully" (cognates: Old Saxon mornon, Old High German mornen, Gothic maurnan "to mourn," Old Norse morna "to pine away"), probably from PIE root *(s)mer- "to remember" (see memory); or, if the Old Norse sense is the base one, from *mer- "to die, wither." Related: Mourned; mourning.
mourner (n.)youdaoicibaDictYouDict
late 14c., agent noun from mourn (v.).
mournful (adj.)youdaoicibaDictYouDict
early 15c., from mourn + -ful. Related: Mournfully; mournfulness.
mourning (n.)youdaoicibaDictYouDict
Old English murnung "complaint, grief," verbal noun from mourn (v.).
mouse (n.)youdaoicibaDictYouDict
Old English mus "small rodent," also "muscle of the arm," from Proto-Germanic *mus (cognates: Old Norse, Old Frisian, Middle Dutch, Danish, Swedish mus, Dutch muis, German Maus "mouse"), from PIE *mus- (cognates: Sanskrit mus "mouse, rat," Old Persian mush "mouse," Old Church Slavonic mysu, Latin mus, Lithuanian muse "mouse," Greek mys "mouse, muscle").

Plural form mice (Old English mys) shows effects of i-mutation. Contrasted with man (n.) from 1620s. Meaning "black eye" (or other discolored lump) is from 1842. Computer sense is from 1965, though applied to other things resembling a mouse in shape since 1750, mainly nautical.
Parturient montes, nascetur ridiculus mus [Horace]
mouse (v.)youdaoicibaDictYouDict
"to hunt mice," mid-13c., from mouse (n.). Related: Moused; mousing.
mouse-hole (n.)youdaoicibaDictYouDict
early 15c., from mouse (n.) + hole (n.).
mouser (n.)youdaoicibaDictYouDict
"cat that hunts mice," c. 1400, agent noun from mouse (v.).
mousetrap (n.)youdaoicibaDictYouDict
late 15c., from mouse (n.) + trap (n.). Figurative use from 1570s. The thing is older than the word. Old English had musfealle; Middle English had mouscacche (late 14c.).
mousse (n.)youdaoicibaDictYouDict
1892, in cookery sense, from French mousse, from Old French mousse "froth, scum," from Late Latin mulsa "mead," from Latin mulsum "honey wine, mead," from neuter of mulsus "mixed with honey," related to mel "honey" (see Melissa). Meaning "preparation for hair" is from 1977. As a verb in this sense from 1984.