singleyoudaoicibaDictYouDict[single 词源字典]
single: [14] Single comes via Old French sengle or single from Latin singulus. This was formed from sim-, the stem of simplus ‘single’ (which came from the same Indo-European base that produced English same and similar), together with the diminutive suffix *-go and a further element *-lo. Singlet ‘vest’ [18] was coined on the model of doublet, in allusion to its being an unlined garment, made from a ‘single’ layer of material.
=> same, similar, simple[single etymology, single origin, 英语词源]
bigamy (n.)youdaoicibaDictYouDict
"state of having two wives or husbands at the same time," mid-13c., from Old French bigamie (13c.), from Church Latin bigamia, from Late Latin bigamus "twice married," a hybrid from bi- "double" (see bi-) + Greek gamos "marrying" (see gamete). The Greek word was digamos "twice married."
Bigamie is unkinde ðing, On engleis tale, twie-wifing. [c. 1250]
In Middle English, also of two successive marriages or marrying a widow.
English (n.1)youdaoicibaDictYouDict
"the people of England; the speech of England," noun use of Old English adjective Englisc (contrasted to Denisc, Frencisce, etc.), "of or pertaining to the Angles," from Engle (plural) "the Angles," the name of one of the Germanic groups that overran the island 5c., supposedly so-called because Angul, the land they inhabited on the Jutland coast, was shaped like a fish hook (see angle (n.)). Reinforced by Anglo-French engleis. Cognates: Dutch Engelsch, German Englisch, Danish Engelsk, French Anglais (Old French Engelsche), Spanish Inglés, Italian Inglese.

Englisc was used from earliest times without distinction for all the Germanic invaders -- Angles, Saxon, Jutes (Bede's gens Anglorum) -- and applied to their group of related languages by Alfred the Great. "The name English for the language is thus older than the name England for the country" [OED]. After 1066, of the native population of England (as distinguished from Normans and French occupiers), a distinction which lasted about a generation. But as late as Robert of Gloucester's "Chronicle" (c. 1300) it also was sometimes distinguished from "Saxon" ("Þe englisse in þe norþ half, þe saxons bi souþe").
"... when Scots & others are likely to be within earshot, Britain & British should be inserted as tokens, but no more, of what is really meant" [Fowler]
In pronunciation, "En-" has become "In-," perhaps through the frequency of -ing- words and the relative rarity of -e- before -ng- in the modern language, but the older spelling has remained. Meaning "English language or literature as a subject at school" is from 1889. Old English meaning the Anglo-Saxon language before the Conquest is attested from c. 1200 in an account of the native (as opposed to Latin) month names.
single (adj.)youdaoicibaDictYouDict
early 14c., "unmarried," from Old French sengle, sangle "alone, unaccompanied; simple, unadorned," from Latin singulus "one, one to each, individual, separate" (usually in plural singuli "one by one"), from sim- (stem of simplus; see simple) + diminutive suffix. Meaning "consisting of one unit, individual, unaccompanied by others" is from late 14c. Meaning "undivided" is from 1580s. Single-parent (adj.) is attested from 1966.
Steinway (n.)youdaoicibaDictYouDict
make of pianos, from Henry Englehard Steinway (1797-1871), celebrated German piano-builder who founded the firm in New York in 1853.
surcingle (n.)youdaoicibaDictYouDict
"girth for a horse" or other animal, late 14c., from Old French surcengle, from sur- "over" (see sur- (1)) + cengle "a girdle," from Latin cingulum "girth" (see cinch (n.)).