dismissyoudaoicibaDictYouDict
dismiss: [15] Ultimately, dismiss and demise [16] are the same word: both come from Old French desmis or demis ‘sent away’. These in turn came from dismissus, the medieval descendant of Latin dīmissus, which was the past participle of dīmittere, a compound verb formed from dis- ‘away’ and mittere ‘send’. In the case of dismiss, English originally acquired the word, more logically, in the form dismit, based on the Latin infinitive, but in the late 15th century dismiss, in the past participial form dismissed modelled on the French past participle, began to replace it. Demise comes from Anglo-Norman *demise, which represents a nominal use of the feminine form of Old French demis.

It was originally a technical legal term signifying the transference of property or title, and only in the 18th century came to be used for the ‘death’ which often brought this about.

=> commit, demise, mission, transmit
sackyoudaoicibaDictYouDict
sack: English has three separate words sack, one of them now a historical relic and the other two ultimately related. Sack ‘large bag’ [OE] was borrowed from Latin saccus (source also of English sac, sachet, and satchel). This in turn came from Greek sákkos ‘rough cloth used for packing’, which was of Semitic origin (Hebrew has saq meaning both ‘sack’ and ‘sackcloth’).

The colloquial sense ‘dismissal from work’ (as in get the sack) arose in the early 19th century, perhaps from the notion of a dismissed worker going away with his tools or clothing in his bag. Sack ‘plunder’ [16] came via French sac from sacco ‘bag’, the Italian descendant of Latin saccus. This was used in expressions like mettere a sacco, literally ‘put in a bag’, which denoted figuratively ‘plunder, pillage’ (no doubt inspired by the notion of ‘putting one’s loot in a bag’). Sack ‘sherry-like wine’ [16] (Sir John Falstaff’s favourite tipple) was an alteration of seck.

This was short for wine sec, a partial translation of French vin sec ‘dry wine’ (French sec came from Latin siccus ‘dry’, source of English desiccate [16]).

=> sac, sachet, satchel; desiccate, sec
dismiss (v.)youdaoicibaDictYouDict
early 15c., from Latin dimissus, past participle of dimittere "send away, send different ways; break up, discharge; renounce, abandon," from dis- "apart, away" (see dis-) + mittere "send, let go" (see mission). Prefix altered by analogy with many dis- verbs. Dismit, in the same sense, is attested from late 14c. Related: Dismissed; dismissing.
explode (v.)youdaoicibaDictYouDict
1530s (transitive), "to reject with scorn," from Latin explodere "drive out or off by clapping, hiss off, hoot off," originally theatrical, "to drive an actor off the stage by making noise," hence "drive out, reject, destroy the repute of" (a sense surviving in an exploded theory), from ex- "out" (see ex-) + plaudere "to clap the hands, applaud," which is of uncertain origin. Athenian audiences were highly demonstrative. clapping and shouting approval, stamping, hissing, and hooting for disapproval. The Romans seem to have done likewise.
At the close of the performance of a comedy in the Roman theatre one of the actors dismissed the audience, with a request for their approbation, the expression being usually plaudite, vos plaudite, or vos valete et plaudite. [William Smith, "A First Latin Reading Book," 1890]
English used it to mean "drive out with violence and sudden noise" (1650s), later "cause to burst suddenly and noisily" (1794). Intransitive sense of "go off with a loud noise" is from 1790, American English; figurative sense of "to burst with destructive force" is by 1882; that of "burst into sudden activity" is from 1817; of population by 1959. Related: Exploded; exploding.
flamen (n.)youdaoicibaDictYouDict
"ancient Roman priest," 1530s, from Latin flamen "a priest of one deity," which is of unknown origin, perhaps from PIE root *bhlad- "to worship" (cognates: Gothic blotan, Old English blotan "to sacrifice"). Also used from early 14c., in imitation of Geoffrey of Monmouth, in reference to ancient pre-Christian British priests. Related: Flamineous.
The old connection of flamen with Skt. brahman- is highly problematic, and has been dismissed by Schrijver. As WH surmise, the ending -en points to an archaism, probably a n[euter] noun "sacrificial act" which changed its semantics to 'priest'; for a similar shift, cf. augur "bird-observer" .... The only viable comparanda are found in [Germanic], but they show root-final (or suffixal) *-d~. [de Vaan]
sincere (adj.)youdaoicibaDictYouDict
1530s, "pure, unmixed," from Middle French sincere (16c.), from Latin sincerus, of things, "whole, clean, pure, uninjured, unmixed," figuratively "sound, genuine, pure, true, candid, truthful," of uncertain origin. Ground sense seems to be "that which is not falsified." Meaning "free from pretense or falsehood" in English is from 1530s.

There has been a temptation to see the first element as Latin sine "without." But there is no etymological justification for the common story that the word means "without wax" (*sin cerae), which is dismissed out of hand by OED and others, and the stories invented to justify that folk etymology are even less plausible. Watkins has it as originally "of one growth" (i.e. "not hybrid, unmixed"), from PIE *sm-ke-ro-, from *sem- "one" (see same) + root of crescere "to grow" (see crescent).
tick (v.)youdaoicibaDictYouDict
early 13c., "to touch or pat," perhaps from an Old English verb corresponding to tick (n.2), and perhaps ultimately echoic. Compare Old High German zeckon "to pluck," Dutch tikken "to pat," Norwegian tikke "touch lightly." Meaning "make a ticking sound" is from 1721. Related: Ticked; ticking.

To tick (someone) off is from 1915, originally "to reprimand, scold." The verbal phrase tick off was in use in several senses at the time: as what a telegraph instrument does when it types out a message (1873), as what a clock does in marking the passage of time (1777), to enumerate on one's fingers (1899), and in accountancy, etc., "make a mark beside an item on a sheet with a pencil, etc.," often indicating a sale (by 1881, from tick (n.2) in sense "small mark or dot"). This last might be the direct source of the phrase, perhaps via World War I military bureaucratic sense of being marked off from a list as "dismissed" or "ineligible." Meaning "to annoy" is recorded by 1971.
Viking (n.)youdaoicibaDictYouDict
Scandinavian pirate, 1801, vikingr, in "The History of the Anglo-Saxons" by English historian Sharon H. Turner (1768-1847); he suggested the second element might be connected to king:
The name by which the pirates were at first distinguished was Vikingr, which perhaps originally meant kings of the bays. It was in bays that they ambushed, to dart upon the passing voyager.
But this later was dismissed as incorrect. The form viking is attested in 1820, in Jamieson's notes to "The Bruce." The word is a historians' revival; it was not used in Middle English, but it was reintroduced from Old Norse vikingr "freebooter, sea-rover, pirate, viking," which usually is explained as meaning properly "one who came from the fjords," from vik "creek, inlet, small bay" (cognates: Old English wic, Middle High German wich "bay," and second element in Reykjavik). But Old English wicing and Old Frisian wizing are almost 300 years older than the earliest attestation of the Old Norse word, and probably derive from wic "village, camp" (large temporary camps were a feature of the Viking raids), related to Latin vicus "village, habitation" (see villa).

The connection between the Norse and Old English words is still much debated. The period of Viking activity was roughly 8c. to 11c. In the Anglo-Saxon Chronicle, the raiding armies generally were referred to as þa Deniscan "the Danes," while those who settled in England were identified by their place of settlement. Old Norse viking (n.) meant "freebooting voyage, piracy;" one would "go on a viking" (fara í viking).