英语词源字典 - 在线词源网站

moly (n.)[moly 词源字典]: 1570s, fabulous magical herb with white flowers and black root, given by Hermes to Odysseus as protection against Circe's sorcery, of unknown origin.[moly etymology, moly origin, 英语词源]
molybdenum (n.): metallic element, 1816, from molybdena, used generally for lead-like minerals, from Greek molybdos "lead," also "black graphite," related to Latin plumbum "lead" (see plumb (n.)), and like it probably borrowed from a lost Mediterranean language, perhaps Iberian. The element so called because of its resemblance to lead ore.
mom (n.): 1867, American English, perhaps a shortening of mommy; also see mamma. Adjectival phrase mom and pop dates from 1951.
moment (n.): mid-14c., "very brief portion of time, instant," in moment of time, from Old French moment (12c.) "moment, minute; importance, weight, value" or directly from Latin momentum "movement, motion; moving power; alteration, change;" also "short time, instant" (also source of Spanish, Italian momento), contraction of *movimentum, from movere "to move" (see move (v.)). Some (but not OED) explain the sense evolution of the Latin word by notion of a particle so small it would just "move" the pointer of a scale, which led to the transferred sense of "minute time division." Sense of "importance, 'weight' " is attested in English from 1520s.

Phrase never a dull moment first recorded 1889 in Jerome K. Jerome's "Three Men in a Boat." Phrase moment of truth first recorded 1932 in Hemingway's "Death in the Afternoon," from Spanish el momento de la verdad, the final sword-thrust in a bull-fight.
momentarily (adv.): 1650s, "for a moment," from momentary + -ly (2). Meaning "at any moment" is from 1928.
momentary (adj.): "lasting a moment," mid-15c., from Latin momentarius "of brief duration," from momentum (see moment).
momently (adv.): 1670s, "moment to moment," from moment + -ly (2). Meaning "at any moment" is from 1775.
momento (n.): a misspelling, or perhaps variant, of memento.
momentous (adj.): 1650s, from moment + -ous to carry the sense of "important" while momentary kept the meaning "of an instant of time." Related: Momentously; momentousness.
momentum (n.): 1690s, scientific use in mechanics, "quantity of motion of a moving body," from Latin momentum "movement, moving power" (see moment). Figurative use dates from 1782.
momma (n.): 1884, American English variant of mamma (q.v.). As a biker's girlfriend or female passenger, from 1950s.
mommy (n.): 1844, U.S. variant of mamma. Variant spelling mommie attested by 1882. Mommy track first attested 1987. Related: Mommies; also see momma.
Momus (n.): "humorously disagreeable person," 1560s, from Latin, from Greek Momos, nme of the god of ridicule and sarcasm (Greek momos, literally "blame, ridicule, disgrace," of unknown origin); also used in English as personification of fault-finding and captious criticism.
momzer (n.): "contemptible person, moocher," 1560s, from Hebrew, literally "bastard" (used in Vulgate), but modern usage is a recent borrowing from Yiddish.
Mona: fem. proper name, from Irish Muadhnait, diminutive of muadh "noble."
Mona Lisa: by 1827 as the name of Leonardo's painting or its subject, Lisa, wife of Francesco del Giocondo (see Gioconda). Mona is said to be a contraction of madonna as a polite form of address to a woman, so, "Madam Lisa." The name is by 1923 (D.H. Lawrence) in reference to her enigmatic smile or expression.
monad (n.): "unity, arithmetical unit," 1610s, from Late Latin monas (genitive monadis), from Greek monas "unit," from monos "alone" (see mono-). In Leibnitz's philosophy, "an ultimate unit of being" (1748). Related: Monadic.
monarch (n.): mid-15c., from Middle French monarque (14c.) or directly from Late Latin monarcha, from Greek monarkhes "one who rules alone" (see monarchy). As a type of large butterfly, from 1890.
monarchic (adj.): from Middle French monarchique, from Greek monarkhikos, from monarkhes (see monarch). Related: Monarchical (1570s).
monarchism (n.): from French monarchisme, from monarchie (see monarchy).