Etymology
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bastard (n.)
"illegitimate child," early 13c., from Old French bastard "acknowledged child of a nobleman by a woman other than his wife" (11c., Modern French bâtard), probably from fils de bast "packsaddle son," meaning a child conceived on an improvised bed (saddles often doubled as beds while traveling), with pejorative ending -art (see -ard). Alternative possibly is that the word is from Proto-Germanic *banstiz "barn," equally suggestive of low origin.

Compare German bänkling "bastard; child begotten on a bench" (and not in a marriage bed), the source of English bantling (1590s) "brat, small child." Bastard was not always regarded as a stigma; the Conqueror is referred to in state documents as "William the Bastard." Figurative sense of "something not pure or genuine" is late 14c. Use as a generic vulgar term of abuse for a man is attested from 1830. Among the "bastard" words in Halliwell-Phillipps' "Dictionary of Archaic and Provincial Words" are avetrol, chance-bairn, by-blow, harecoppe, horcop, and gimbo ("a bastard's bastard").

As an adjective from late 14c. It is used of things spurious or not genuine, having the appearance of being genuine, of abnormal or irregular shape or size, and of mongrels or mixed breeds.
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bastardy (n.)
early 14c., "condition of illegitimacy," from Anglo-French and Old French bastardie, from bastard (see bastard). As "begetting of bastards, fornication" from 1570s.
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bastardize (v.)
1610s, "to identify as a bastard," from bastard (q.v.) + -ize. The figurative sense, "to make degenerate, debase" is earlier (1580s), probably because bastard also was serving as a verb meaning "to declare illegitimate" (1540s). Related: Bastardized; bastardizing; bastardization.
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-ard 
also -art, from Old French -ard, -art, from German -hard, -hart "hardy," forming the second element in many personal names, often used as an intensifier, but in Middle High German and Dutch used as a pejorative element in common nouns, and thus passing into Middle English in bastard, coward, blaffard ("one who stammers"), etc. It thus became a living element in English, as in buzzard, drunkard. The German element is from Proto-Germanic *-hart/*-hard "bold, hardy," from PIE root *kar- "hard."
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grass widow (n.)

1520s, the earliest recorded sense is "mistress;" the allusion to grass is not clear, but it commonly was believed to refer to casual bedding (compare bastard and German Strohwitwe, literally "straw-widow," and compare the expression give (a woman) a grass gown "roll her playfully on the grass" (1580s), also euphemistic for the loss of virginity). Revived late 18c. as "one that pretends to have been married, but never was, yet has children;" in early 19c. use it could mean "married woman whose husband is absent" (and often presumed, but not certainly known to be, dead), also often applied to a divorced or discarded wife or an unmarried woman who has had a child. Both euphemistic and suggestive.

[G]rasse wydowes ... be yet as seuerall as a barbours chayre and neuer take but one at onys. [More, 1528]
GRASS WIDOW, s. a forsaken fair one, whose nuptials, not celebrated in a church, were consummated, in all pastoral simplicity, on the green turf. [Rev. Robert Forby, "Vocabulary of East Anglia," London, 1830]
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momzer (n.)

"contemptible person, moocher," 1560s, from Hebrew, literally "bastard" (used as such in Vulgate), but the modern word (by 1914) is a separate borrowing from Yiddish.

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bort (n.)
"waste diamonds, small chips from diamond-cutting," 1620s, of unknown origin, perhaps related to Old French bort "bastard."
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mamzer (n.)

"bastard," 1560s, from Late Latin mamzer, from Hebrew mamzer, left untranslated in Deuteronomy xxiii.2 in the Vulgate. Modern uses (from mid-20c.) probably are from Yiddish.

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misbegotten (adj.)

"bastard, illegitimate, unlawfully or irregularly begotten," 1550s, past-participle adjective from obsolete misbeget "beget wrongly or unlawfully" (c. 1300), from mis- (1) "badly, wrongly" + beget. "Used as a general epithet of opprobrium" [Century Dictionary].

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lingua franca (n.)
1620s, from Italian, literally "Frankish tongue." A stripped-down Italian peppered with Spanish, French, Greek, Arabic, and Turkish words, it began as a form of communication in the Levant. The name probably is from the Arabic custom, dating back to the Crusades, of calling all Europeans Franks (see Frank). Sometimes in 17c. English sources also known as Bastard Spanish.
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