英语词源字典 - 在线词源网站

sebaceous (adj.)[sebaceous 词源字典]: 1728, "secreting sebum," from Latin sebaceus "of tallow," from sebum "tallow, grease" (see sebum). Meaning "oily, greasy, fatty" is from 1783.[sebaceous etymology, sebaceous origin, 英语词源]
Sebastian: masc. proper name, from Latin Sebastianus, from Greek Sebastianos, "man of Sebastia," a city in Pontus that was named for Augustus Caesar, first Roman emperor, from Greek sebastos "venerable," a translation of Latin augustus, the epithet of Caesar.
seborrhea (n.): also seborrhoea, "discharge of sebaceous matter, especially as a scalp condition," 1849, coined in Modern Latin as a hybrid, from sebo-, used as comb. form of Latin sebum "tallow, suet, grease" (see sebum) + Greek hroia "flow, flux," from rhein "to flow" (see rheum)
sebum (n.): secretion of the sebaceous glands, 1728, from medical use of Latin sebum "sebum, suet, grease," probably related to sapo "soap" (see soap (n.)).
sec (n.): 1956, conversational shortening of second (n.).
sec (adj.): of wine, "dry," French sec (10c.), from Latin siccus "dry" (also source of Italian secco); see siccative.
secant (n.): 1590s, from Latin secantem (nominative secans) "a cutting," present participle of secare "to cut" (see section (n.)). First used by Danish mathematician Thomas Fincke in "Geometria Rotundi" (1583).
secateurs (n.): pruning shears, 1881, from French sécateur, ultimately from Latin secare "to cut" (see section (n.)).
secede (v.): 1702, "to leave one's companions," from Latin secedere "go away, withdraw, separate; rebel, revolt" (see secession). Sense of "to withdraw from a political or religious alliance of union" is recorded from 1755, originally especially in reference to the Church of Scotland. Related: Seceded; seceding; seceder.
secession (n.): 1530s, from Latin secessionem (nominative secessio) "a withdrawal, separation; political withdrawal, insurrection, schism," noun of action from past participle stem of secedere "secede," from se- "apart" (see secret) + cedere "to go" (see cede). Originally in a Roman historical context, "temporary migration of plebeians from the city to compel patricians to address their grievances;" modern use in reference to religious or political unions dates from 1650s.
secessionist (n.): 1860, first recorded in U.S. context, from secession + -ist (colloquial short form secesh, noun and adjective, is attested from 1861); the earlier noun had been seceder, but this had religious overtones, especially in reference to Scottish Church history.
seclude (v.): mid-15c., "to shut up, enclose, confine," from Latin secludere "shut off, confine," from se- "apart" (see secret) + -cludere, variant of claudere "to shut" (see close (v.)). Meaning "to remove or guard from public view" is recorded from 1620s. Related: Secluded; secluding.
secluded (adj.): c. 1600, of persons; in reference to places, 1798, past participle adjective from seclude (v.). Earlier secluse (1590s).
seclusion (n.): 1610s, from Medieval Latin seclusionem (nominative seclusio), noun of action from past participle stem of Latin secludere (see seclude).
seclusive (adj.): 1743, from Latin seclus-, past participle stem of secludere (see seclude) + -ive. Related: Seclusively; seclusiveness.
Seconal: 1935, U.S. proprietary name (Eli Lilly & Co.), from Secon(dary) Al(lyl).
second (adj.): "next after first," c. 1300, from Old French second, secont, and directly from Latin secundus "following, next in time or order," also "secondary, subordinate, inferior," from root of sequi "follow" (see sequel). Replaced native other in this sense because of the ambiguousness of the earlier word. Second sight is from 1610s; an etymologically perverse term, because it means in reality the sight of events before, not after, they occur. Second fiddle first attested 1809:
A metaphor borrowed from a musical performer who plays the second or counter to one who plays the first or the "air." [Bartlett, "Dictionary of Americanisms," 1848]
second (n.1): "one-sixtieth of a minute of degree," also "sixtieth part of a minute of time," late 14c. in geometry, from Old French seconde, from Medieval Latin secunda, short for secunda pars minuta "second diminished part," the result of the second division of the hour by sixty (the first being the "prime minute," now called the minute), from Latin secunda, fem. of secundus (see second (adj.)). The second hand of a clock is attested from 1759.
second (v.): 1580s, "to support or represent in a duel, fight, etc.," from Middle French seconder, from Latin secundare "to assist, make favorable," from secundus "assisting, favorable, following, second" (see second (adj.)). The parliamentary sense is first recorded 1590s. Related: Seconded; seconding.
second (n.2): "assistant, supporter," 1580s, from second (v.).