sedum (n.)youdaoicibaDictYouDict[sedum 词源字典]
mid-15c., from Latin sedum "houseleek."[sedum etymology, sedum origin, 英语词源]
see (v.)youdaoicibaDictYouDict
Old English seon "to see, look, behold; observe, perceive, understand; experience, visit, inspect" (contracted class V strong verb; past tense seah, past participle sewen), from Proto-Germanic *sekhwan (cognates: Old Saxon, Old High German sehan, Middle High German, German sehen, Old Frisian sia, Middle Dutch sien, Old Norse sja, Gothic saihwan), from PIE root *sekw- (2) "to see," which is probably identical with *sekw- (1) "to follow" (see sequel), a root which produced words for "say" in Greek and Latin, and also words for "follow" (such as Latin sequor), but "opinions differ in regard to the semantic starting-point and sequences" [Buck]. Thus see might originally mean "follow with the eyes."

Used in Middle English to mean "behold in the imagination or in a dream" (c. 1200), "to recognize the force of (a demonstration)," also c. 1200. Sense of "escort" (as in to see (someone) home) first recorded 1607 in Shakespeare. Meaning "to receive as a visitor" is attested from c. 1500. Gambling sense of "equal a bet" is from 1590s. See you as a casual farewell first attested 1891. Let me see as a pausing statement is recorded from 1510s. To have seen everything as a hyperbolic expression of astonishment is from 1957.
When you have seen one of their Pictures, you have seen all. [Blake, c. 1811]
see (n.)youdaoicibaDictYouDict
c. 1300, "throne of a bishop, archbishop, or pope," also "throne of a monarch, a goddess, Antichrist, etc.," from Old French sie "seat, throne; town, capital; episcopal see," from Latin sedem (nominative sedes) "seat, throne, abode, temple," related to sedere "to sit" (see sedentary). Early 14c. as "administrative center of a bishopric;" c. 1400 as "province under the jurisdiction of a bishop."
see-saw (n.)youdaoicibaDictYouDict
also seesaw, 1630s, in see-saw-sacke a downe (like a Sawyer), words in a rhythmic jingle used by children and repetitive motion workers, probably imitative of the rhythmic back-and-forth motion of sawyers working a two-man saw over wood or stone (see saw (n.1). Ha ha.). Reference to a game of going up and down on a balanced plank is recorded from 1704; figurative sense is from 1714. Applied from 1824 to the plank arranged for the game.
see-saw (v.)youdaoicibaDictYouDict
also seesaw, "move up and down," 1712, from see-saw (n.). Related: See-sawed; see-sawing.
see-through (adj.)youdaoicibaDictYouDict
1950, from the verbal phrase (c. 1400); see see (v.) + through (adv.).
seed (v.)youdaoicibaDictYouDict
late 14c., "to flower, flourish; produce seed;" mid-15c., "to sow with seed," from seed (n.). Meaning "remove the seeds from" is from 1904. Sporting (originally tennis) sense (1898) is from notion of spreading certain players' names so as to ensure they will not meet early in a tournament. The noun in this sense is attested from 1924. Related: Seeded; seeding.
seed (n.)youdaoicibaDictYouDict
Old English sed, sæd "that which may be sown; an individual grain of seed; offspring, posterity," from Proto-Germanic *sediz "seed" (cognates: Old Norse sað, Old Saxon sad, Old Frisian sed, Middle Dutch saet, Old High German sat, German Saat), from PIE *se-ti- "sowing," from root *se- (1) "to sow" (see sow (v.)). Figurative use in Old English. Meaning "offspring, progeny" rare now except in biblical use. Meaning "semen" is from c. 1300. For sporting sense, see seed (v.).
seed-cake (n.)youdaoicibaDictYouDict
1570s, from seed (n.) + cake (n.).
seeded (adj.)youdaoicibaDictYouDict
1922 in the sports sense (originally tennis), past participle adjective from seed (v.).
seedling (n.)youdaoicibaDictYouDict
"young plant developed from seed," 1650s, from seed (n.) + diminutive suffix -ling.
seedy (adj.)youdaoicibaDictYouDict
mid-15c., "fruitful, abundant," from seed (n.) + -y (2). From 1570s as "abounding in seeds." Meaning "shabby" is from 1739, probably in reference to the appearance of a flowering plant that has run to seed. Related: Seediness.
seeing (adj.)youdaoicibaDictYouDict
c. 1300, present participle adjective from see (v.). Seeing Eye dog first attested 1929, American English, trademarked by Seeing Eye Inc. of New Jersey.
seek (v.)youdaoicibaDictYouDict
Old English secan "inquire, search for; pursue; long for, wish for, desire; look for, expect from," influenced by Old Norse soekja, both from Proto-Germanic *sokjan (cognates: Old Saxon sokian, Old Frisian seka, Middle Dutch soekan, Old High German suohhan, German suchen, Gothic sokjan), from PIE *sag-yo-, from root *sag- "to track down, seek out" (cognates: Latin sagire "to perceive quickly or keenly," sagus "presaging, predicting," Old Irish saigim "seek"). The natural modern form of the Anglo-Saxon word as uninfluenced by Norse is in beseech. Related: Sought; seeking.
seeker (n.)youdaoicibaDictYouDict
early 14c., agent noun from seek. The religious sect of the Seekers is attested from 1645.
seem (v.)youdaoicibaDictYouDict
c. 1200, "to appear to be;" c. 1300, "to be fitting, be appropriate, be suitable," though the more recent sense in English is the etymological one; from Old Norse soema "to honor; to put up with; to conform to (the world, etc.)," verb derived from adjective soemr "fitting," from Proto-Germanic *somi- (cognates: Old English som "agreement, reconciliation," seman "to conciliate," source of Middle English semen "to settle a dispute," literally "to make one;" Old Danish some "to be proper or seemly"), from PIE *som-i-, from root *sem- "one, as one" (see same). Related: Seemed; seeming.
seeming (adj.)youdaoicibaDictYouDict
late 14c., present participle adjective from seem. Seemingly in sense of "to all appearances" recorded from 1590s.
seemly (adj.)youdaoicibaDictYouDict
"of pleasing or good appearance," also "proper, tasteful, decorous," early 13c., semlich, from Old Norse soemiligr "becoming, honorable," from soemr (see seem). Related: Seemliness. Old Norse also had soemleitr "fine to look at."
seenyoudaoicibaDictYouDict
Middle English sein, from Old English gesegen, gesewen, past participle of seon (see see (n.)). From c. 1200 as "perceived, discovered." To have seen everything as a hyperbolic expression of astonishment is from 1941.
When you have seen one of their Pictures, you have seen all. [Blake, c. 1811]
seep (v.)youdaoicibaDictYouDict
1790, variant of sipe (c. 1500), possibly from Old English sipian "to seep," from Proto-Germanic *sip- (cognates: Middle High German sifen, Dutch sijpelen "to ooze"), from PIE root *seib- "to pour out, drip, trickle" (see soap (n.)). Related: Seeped; seeping.