moderate (v.)youdaoicibaDictYouDict[moderate 词源字典]
early 15c., "to abate excessiveness;" from Latin moderatus, past participle of moderari (see moderate (adj.)). Meaning "to preside over a debate" is first attested 1570s. Related: Moderated; moderating.[moderate etymology, moderate origin, 英语词源]
moderate (n.)youdaoicibaDictYouDict
"one who holds moderate opinions on controversial subjects," 1794, from moderate (adj.). Related: Moderatism; -moderantism.
moderately (adv.)youdaoicibaDictYouDict
late 14c., from moderate (adj.) + -ly (2).
moderation (n.)youdaoicibaDictYouDict
early 15c., from Old French moderacion (14c.) "alteration, modification; mitigation, alleviation," from Latin moderationem (nominative moderatio) "a controlling, guidance, government, regulation; moderation, temperateness, self-control," noun of action from moderatus (see moderate (adj.)).
moderator (n.)youdaoicibaDictYouDict
late 14c., "ruler, governor," from Latin moderator "manager, ruler, director," literally "he who moderates," from moderatus (see moderate (adj.)). Meaning "one who acts as an umpire" is from 1560s. Fem. form moderatrix attested from 1530s.
modern (adj.)youdaoicibaDictYouDict
c. 1500, "now existing;" 1580s, "of or pertaining to present or recent times;" from Middle French moderne (15c.) and directly from Late Latin modernus "modern" (Priscian, Cassiodorus), from Latin modo "just now, in a (certain) manner," from modo (adv.) "to the measure," ablative of modus "manner, measure" (see mode (n.1)). Extended form modern-day attested from 1909.

In Shakespeare, often with a sense of "every-day, ordinary, commonplace." Slang abbreviation mod first attested 1960. Modern art is from 1807 (by contrast to ancient); modern dance first attested 1912; first record of modern jazz is from 1954. Modern conveniences first recorded 1926.
modern (n.)youdaoicibaDictYouDict
1580s, "person of the present time" (contrasted to ancient, from modern (adj.). From 1897 as "one who is up to date."
modernism (n.)youdaoicibaDictYouDict
1737, "deviation from the ancient and classical manner" [Johnson, who calls it "a word invented by Swift"], from modern + -ism. From 1830 as "modern ways and styles." Used in theology since 1901. As a movement in the arts (away from classical or traditional modes), from 1929.
modernist (n.)youdaoicibaDictYouDict
1580s, "a modern person," from modern + -ist. Later, "a supporter of the modern" (as opposed to the classical), c. 1700. As a follower of a movement in the arts (modernism), attested from 1927.
modernistic (adj.)youdaoicibaDictYouDict
1878, from modernist + -ic.
modernity (n.)youdaoicibaDictYouDict
1620s, from Medieval Latin modernitatem, noun of quality from modernus (see modern).
modernization (n.)youdaoicibaDictYouDict
1770, from modernize + -ation.
modernize (v.)youdaoicibaDictYouDict
1748, from modern + -ize, or from French moderniser. Related: Modernized; modernizing; modernizer.
modest (adj.)youdaoicibaDictYouDict
1560s, "having moderate self-regard," from Middle French modeste (14c.), from Latin modestus "keeping due measure" (see modesty). Of women, "not improper or lewd," 1590s; of female attire, 1610s. Of demands, etc., c. 1600. Related: Modestly.
modesty (n.)youdaoicibaDictYouDict
1530s, "freedom from exaggeration, self-control," from Middle French modestie or directly from Latin modestia "moderation, sense of honor, correctness of conduct," from modestus "moderate, keeping measure, sober, gentle, temperate," from modus "measure, manner" (see mode (n.1)). Meaning "quality of having a moderate opinion of oneself" is from 1550s; that of "womanly propriety" is from 1560s.
La pudeur donne des plaisirs bien flatteurs à l'amant: elle lui fait sentir quelles lois l'on transgresse pour lui; (Modesty both pleases and flatters a lover, for it lays stress on the laws which are being transgressed for his sake.) [Stendhal "de l'Amour," 1822]
modicum (n.)youdaoicibaDictYouDict
"small quantity or portion," late 15c., Scottish, from Latin modicum "a little," noun use of neuter of modicus "moderate, having a proper measure; ordinary, scanty, small, few," from modus "measure, manner" (see mode (n.1)).
modification (n.)youdaoicibaDictYouDict
c. 1500, in philosophy, from Middle French modification (14c.) and directly from Latin modificationem (nominative modificatio) "a measuring," noun of action from past participle stem of modificare (see modify). Meaning "alteration to an object to bring it up to date" is from 1774. Biological sense is attested by 1896.
modifier (n.)youdaoicibaDictYouDict
1580s, agent noun of modify. Grammatical sense is from 1865.
modify (v.)youdaoicibaDictYouDict
late 14c., from Old French modifier (14c.), from Latin modificare "to limit, measure off, restrain," from modus "measure, manner" (see mode (n.1)) + root of facere "to make" (see factitious). Related: Modified; modifying.
modish (adj.)youdaoicibaDictYouDict
1650s, from mode (n.2) + -ish. "Very common in 17-18 c.; now somewhat arch[aic]." [OED].