英语词源字典 - 在线词源网站

boor [boor 词源字典]: boor: [15] Boor was borrowed into English either from Low German hūr or from Dutch boer (Boer ‘Dutch colonist in South Africa’ is a later, 19thcentury borrowing). When first acquired it meant ‘peasant farmer’, and did not develop its modern explicit connotations of coarseness and rudeness until the 16th century. Its ultimate source was the Germanic base *bū- ‘dwell’, so its original meaning was something like ‘person who lives in a particular place’ (the related neighbour was literally ‘someone who lives nearby’).

Other English words from the same source include be, booth, bound ‘intending to go’, bower, build, burly, byelaw, byre, and the -band of husband.
=> be, boer, booth, bower, build, burly, byelaw, byre, husband, neighbour[boor etymology, boor origin, 英语词源]
cruel: cruel: [13] Aptly, cruelty and crudeness are closely linked etymologically. Cruel comes via Old French cruel from Latin crūdēlis, a relative of Latin crūdus (which actually meant ‘cruel’ as well as ‘raw’ and ‘bloody’). Both come ultimately from an Indo-European base which also produced English raw, Greek kréas ‘flesh’ (whence English creosote and pancreas), and Old Slavic kruvi ‘blood’. (Crude is a 14thcentury borrowing direct from Latin.)
=> creosote, crude, pancreas, raw
shove: shove: [OE] Shove was originally a perfectly respectable, neutral verb for ‘push forcefully, thrust’, but over the centuries it has come down in the world, acquiring connotations of rudeness. In common with German schieben and Dutch schuiven it goes back to a prehistoric Germanic *skeuban. This was formed from a base which also produced English scuffle [16], sheaf [OE], shuffle [16], and indeed shovel [OE] (etymologically an ‘implement for shoving’), and may be distantly related to Lithuanian skubus ‘quick’ and Old Church Slavonic skubati ‘pull’.
=> scuffle, sheaf, shovel, shuffle
bluntness (n.): late 15c., "stupidity," from blunt (adj.) + -ness. Meaning "rudeness" is from c. 1600.
civil (adj.): late 14c., "relating to civil law or life; pertaining to the internal affairs of a state," from Old French civil "civil, relating to civil law" (13c.) and directly from Latin civilis "relating to a citizen, relating to public life, befitting a citizen," hence by extension "popular, affable, courteous;" alternative adjectival derivation of civis "townsman" (see city).

The sense of "polite" was in classical Latin, from the courteous manners of citizens, as opposed to those of soldiers. But English did not pick up this nuance of the word until late 16c. "Courteous is thus more commonly said of superiors, civil of inferiors, since it implies or suggests the possibility of incivility or rudeness" [OED]. Civil case (as opposed to criminal) is recorded from 1610s. Civil liberty is by 1640s. Civil service is from 1772, originally in reference to the East India Company.
crude (adj.): late 14c., "in a raw state," from Latin crudus "rough; not cooked, raw, bloody," from PIE *krue-do-, from PIE *kreue- (1) "raw flesh" (see raw). Meaning "lacking grace" is first attested 1640s. Related: Crudely; crudeness. Crude oil is from 1865.
gently (adv.): early 14c., "befitting one of gentle rank, as of good family," from gentle + -ly (2). Meaning "quietly, softly, without rudeness, gradually" is from 1550s.
incivility (n.): 1580s, "want of civilized behavior, rudeness," from French incivilité (early 15c.), from Late Latin incivilitatem (nominative incivilitas), from incivilis "not civil," from in- "not, opposite of" (see in- (1)) + civilis "relating to a citizen, relating to public life, befitting a citizen; popular, affable, courteous" (see civil). Meaning "an act of rudeness" is from 1650s. Incivil "not conducive to common good" is from mid-15c.
mister: as a title of courtesy before a man's Christian name, mid-15c., unaccented variant of master. As a form of address, without a name and with a tinge of rudeness, from 1760.
rigor (n.): late 14c., from Old French rigor "strength, hardness" (13c., Modern French rigueur), from Latin rigorem (nominative rigor) "numbness, stiffness, hardness, firmness; roughness, rudeness," from rigere "be stiff" (see rigid).
stare (v.): Old English starian "to stare, gaze, look fixedly at," from Proto-Germanic *staren "be rigid" (cognates: Old Norse stara, Middle Low German and Middle Dutch staren, Old High German staren, German starren "to stare at;" German starren "to stiffen," starr "stiff;" Old Norse storr "proud;" Old High German storren "to stand out, project;" Gothic andstaurran "to be obstinate"), from PIE root *ster- (1) "strong, firm, stiff, rigid" (see stereo- and compare torpor).

Not originally implying rudeness. To stare (someone) down is from 1848. Related: Stared; staring.
vulgarity (n.): 1570s, "the common people," from Middle French vulgarité and directly from Late Latin vulgaritas "the multitude," from vulgaris (see vulgar). Meaning "coarseness, crudeness" is recorded from 1774.