英语词源字典 - 在线词源网站

internecine [internecine 词源字典]: internecine: [17] Etymologically, internecine denotes ‘attended by great slaughter’. Its modern connotations of ‘conflict within a group’, which can be traced back to the 18th century (Dr Johnson in his Dictionary 1755 defines it as ‘endeavouring mutual destruction’), presumably arise from the standard interpretation of inter- as ‘among, between’. But in fact in the case of internecine it was originally used simply as an intensive prefix.

The word was borrowed from Latin internecīnus, a derivative of internecāre ‘slaughter, exterminate’. This was a compound verb formed with the intensive inter- from necāre ‘kill’ (a relative of English necromancy and pernicious).
=> necromancy, pernicious[internecine etymology, internecine origin, 英语词源]
military: military: [16] Military traces its history back to Latin mīles ‘soldier’, a word possibly of Etruscan origin. Its derived adjective mīlitāris entered English via French militaire. Also based on mīles was the verb mīlitāre ‘serve as a soldier’, which has given English militant [15] and militate [17], a verb whose meaning has changed sharply over the centuries: at first it was used in the same way as its Latin ancestor, but then it developed via ‘conflict with’ to ‘be evidence against’, and finally, in the 20th century, to ‘make unlikely’. Militia [16] comes from Latin militia ‘warfare’, another derivative of mīles.
match (v.): "to join one to another" (originally especially in marriage), late 14c., from match (n.2). Meaning "to place (one) in conflict with (another)" is from c. 1400. That of "to pair with a view to fitness" is from 1520s; that of "to be equal to" is from 1590s. Related: Matched; matching.
militate (v.): 1620s, "to serve as a soldier" (now rare), from Latin militatum, past participle of militare "serve as a soldier," from miles "soldier" (see military (adj.)). Sense developed via "conflict with," to "be evidence" for or against (1640s). Related: Militated; militating.
syndicalism (n.): 1907, from French syndicalisme "movement to transfer ownership of means of production and distribution to industrial workers," from syndical "of a labor union," from syndic "chief representative" (see syndic).
"Syndicalism" is in France the new, all-absorbing form of Labor's conflict with Capital. Its growth has been so rapid that its gravity is not appreciated abroad. This year, even more than last, the strikes and other "direct action," which it has combined, have upset the industrial life of the country, and forced the attention of Parliament and Government. ["The Nation," June 20, 1907]