asinine (adj.)youdaoicibaDictYouDict[asinine 词源字典]
c. 1600, "obstinate, stupid," from Latin asininus "stupid," literally "like an ass," from asinus "ass," also "dolt, blockhead" (see ass (n.1)). The literal sense in English is recorded from 1620s.[asinine etymology, asinine origin, 英语词源]
ask (v.)youdaoicibaDictYouDict
Old English ascian "ask, call for an answer; make a request," from earlier ahsian, from Proto-Germanic *aiskon (cognates: Old Saxon escon, Old Frisian askia "request, demand, ask," Middle Dutch eiscen, Dutch eisen "to ask, demand," Old High German eiscon "to ask (a question)," German heischen "to ask, demand"), from PIE *ais- "to wish, desire" (cognates: Sanskrit icchati "seeks, desires," Armenian aic "investigation," Old Church Slavonic iskati "to seek," Lithuanian ieškau "to seek").

Form in English influenced by a Scandinavian cognate (such as Danish æske; the Old English would have evolved by normal sound changes into ash, esh, which was a Midlands and southwestern England dialect form). Modern dialectal ax is as old as Old English acsian and was an accepted literary variant until c. 1600. Related: Asked; asking. Old English also had fregnan/frignan which carried more directly the sense of "question, inquire," and is from PIE root *prek-, the common source of words for "ask" in most Indo-European languages (see pray). If you ask me "in my opinion" is attested from 1910. Asking price is attested from 1755.
askance (adv.)youdaoicibaDictYouDict
1520s, "sideways, asquint," of obscure origin. OED has separate listings for askance and obsolete Middle English askance(s) and no indication of a connection, but Barnhart and others derive the newer word from the older one. The Middle English word, recorded early 14c. as ase quances and found later in Chaucer, meant "in such a way that; even as; as if;" and as an adverb "insincerely, deceptively." It has been analyzed as a compound of as and Old French quanses (pronounced "kanses") "how if," from Latin quam "how" + si "if."
The E[nglish] as is, accordingly, redundant, and merely added by way of partial explanation. The M.E. askances means "as if" in other passages, but here means, "as if it were," i.e. "possibly," "perhaps"; as said above. Sometimes the final s is dropped .... [Walter W. Skeat, glossary to Chaucer's "Man of Law's Tale," 1894]
Also see discussion in Leo Spitzer, "Anglo-French Etymologies," Philological Quarterly 24.23 (1945), and see OED entry for askance (adv.) for discussion of the mysterious ask- word cluster in English. Other guesses about the origin of askance include Old French a escone, from past participle of a word for "hidden;" Italian a scancio "obliquely, slantingly;" or that it is a cognate of askew.
askew (adv.)youdaoicibaDictYouDict
1570s, of uncertain etymology; perhaps literally "on skew" (see skew), or from the Old Norse form, a ska. Earlier askoye is attested in the same sense (early 15c.).
aslant (adv.)youdaoicibaDictYouDict
early 14c., o-slant, literally "on slant," from on + slant (v.). As a preposition from c. 1600.
asleep (adj.)youdaoicibaDictYouDict
c. 1200, aslepe, o slæpe, from Old English on slæpe (see sleep). The parallel form on sleep continued until c. 1550. Of limbs, "numb through stoppage of circulation," from late 14c. Meaning "inattentive, off guard" is from mid-14c.
AsmodeusyoudaoicibaDictYouDict
evil spirit, prince of demons, from Latin Asmodaeus, from Greek Asmodaios, from Talmudic Hebrew Ashmeday, from Avestan Aeshma-dæva, "Aeshma the deceitful," from aeshma "anger," daeva- "spirit, demon."
asocial (adj.)youdaoicibaDictYouDict
1883, "antagonistic to society or social order," from a- "not" + social (adj.); also compare antisocial.
asp (n.)youdaoicibaDictYouDict
poisonous snake, 1520s, earlier aspis (mid-14c.), from Old French aspe "asp" (13c.) or directly from Latin aspidem (nominative aspis), from Greek aspis "an asp, Egyptian viper," literally "shield;" the serpent so called probably in reference to its neck hood.
asparagus (n.)youdaoicibaDictYouDict
late 14c., aspergy; late Old English sparage, from Latin asparagus (in Medieval Latin often sparagus), from Greek asparagos, which is of uncertain origin; probably from PIE root *sp(h)er(e)g- "to spring up" (though perhaps not originally a Greek word).

In Middle English, asperages sometimes was regarded as a plural, with false singular aspergy. By 16c. the word had been anglicized as far as sperach, sperage. It was respelled by c. 1600 to conform with classical Latin, but in 17c. the folk-etymologized variant sparrowgrass took hold, persisting into 19c., during which time asparagus had "an air of stiffness and pedantry" [John Walker, "Critical Pronouncing Dictionary," 1791]. Known in Old English as eorðnafela.
aspartame (n.)youdaoicibaDictYouDict
commercial name of an artificial sweetener, 1973, from aspartic acid (1836), formed irregularly from asparagine (1813), a compound found in asparagus, beet-root, etc., which was named from asparagus + chemical suffix -ine (2). The reason for -ame is unknown.
AspasiayoudaoicibaDictYouDict
beautiful and capable Milesian consort of Pericles, proper name from fem. of Greek aspasios "welcome," related to aspazesthai "to welcome," which is of uncertain origin.
aspect (n.)youdaoicibaDictYouDict
late 14c., an astrological term, "relative position of the planets as they appear from earth" (i.e., how they "look at" one another); later also "way of viewing things," from Latin aspectus "a seeing, looking at, sight, view, countenance, appearance," from past participle of aspicere "to look at," from ad- "to" (see ad-) + specere "to look" (see scope (n.1)). Meaning "the look one wears, the appearance of things" attested by early 15c.
aspen (n.)youdaoicibaDictYouDict
late 14c., from adjective or genitive form of Old English æspe "aspen tree, white poplar," from Proto-Germanic *aspo- (cognates: Old Norse ösp, Middle Dutch espe, Old High German aspa, German Espe), from PIE *apsa "aspen" (cognates: Lithuanian opuse). The current form in English probably arose from phrases such as aspen leaf, aspen bark (see -en (2)). Its leaves have been figurative of tremulousness and quaking since at least early 15c. (an Old English name for it was cwicbeam, literally "quick-tree").
asperate (v.)youdaoicibaDictYouDict
1650s, "make rough," from Latin asperatus, past participle of asperare "to roughen, make rough, exasperate," from asper "rough" (see asperity). Related: Asperated; asperating.
asperation (n.)youdaoicibaDictYouDict
1721, noun of action from asperate (v.). Asperacioun "harshness" is attested from early 15c.
Asperger's Syndrome (n.)youdaoicibaDictYouDict
1981, named for the sake of Austrian pediatrician Hans Asperger (1906-1980), who described it in 1944 (and called it autistic psychopathy; German autistischen psychopathen). A standard diagnosis since 1992; recognition of Asperger's work was delayed, perhaps, because his school and much of his early research were destroyed by Allied bombing in 1944.
The example of autism shows particularly well how even abnormal personalities can be capable of development and adjustment. Possibilities of social integration which one would never have dremt of may arise in the course of development. [Hans Asperger, "Autistic psychopathy in Childhood," 1944]
Asperges (n.)youdaoicibaDictYouDict
sprinkling ritual of the Catholic church, 1550s, from Late Latin asperges, noun use of 2nd person singular future indicative of Latin aspergere "to scatter, strew upon, sprinkle," from ad "to" (see ad-) + spargere "to sprinkle" (see sparse). The word is taken from the phrase Asperges me, Domine, hyssopo et mundabor, from Psalm 51 (Vulgate), sung during the rite of sprinkling a congregation with holy water.
asperity (n.)youdaoicibaDictYouDict
c. 1200, asprete "hardship, harshness of feelings," a figurative use, from Old French asperité "difficulty, painful situation, harsh treatment" (12c., Modern French âpreté), from Latin asperitatem (nominative asperitas) "roughness," from asper "rough, harsh," which is of unknown origin; in Latin used also of sour wine, bad weather, and hard times. Figurative meaning "harshness of feeling" in English is attested from early 15c.
asperse (v.)youdaoicibaDictYouDict
late 15c., "to besprinkle," from Latin aspersus, past participle of aspergere "besprinkle, bespatter" (see aspersion). Meaning "to bespatter someone's character with rumor and false reports" is recorded from 1610s.