intransigentyoudaoicibaDictYouDict[intransigent 词源字典]
intransigent: [19] In the 18th century there was an extreme leftist political party in Spain which, because of its unwillingness ever to compromise, was known as los intransigentes. The name was formed with the negative prefix in- from transigentes, the present participle of Spanish transigir ‘compromise’. This was a descendant of Latin transigere, literally ‘drive through’, hence ‘come to an understanding, accomplish’ (source of English transact), a compound verb formed from trans- ‘through’ and agere ‘drive’ (from which English gets action, agent, etc.) French took the Spanish word over as a general adjective meaning ‘uncompromising’, and English acquired it in the early 1880s.
=> act, action, agent, transact[intransigent etymology, intransigent origin, 英语词源]
facility (n.)youdaoicibaDictYouDict
early 15c., "gentleness, lightness," from Middle French facilité "easiness, ease," from Latin facilitatem (nominative facilitas) "easiness, ease, fluency, willingness," from facilis "easy" (see facile). First in a medical book:
If it be nede forto smyte [the head] wiþ a malle, be it done with esynez or facilite [transl. Guy de Chauliac's "Grande Chirurgie"]
Its sense in English expanded to "opportunity" (1510s), to "aptitude, ease, quality of being easily done" (1530s). Meaning "place for doing something" which makes the word so beloved of journalists and fuzzy writers, first recorded 1872, via notion of "physical means by which (something) can be easily done."
have (v.)youdaoicibaDictYouDict
Old English habban "to own, possess; be subject to, experience," from Proto-Germanic *haben- (cognates: Old Norse hafa, Old Saxon hebbjan, Old Frisian habba, German haben, Gothic haban "to have"), from PIE *kap- "to grasp" (see capable). Not related to Latin habere, despite similarity in form and sense; the Latin cognate is capere "seize.

Sense of "possess, have at one's disposal" (I have a book) is a shift from older languages, where the thing possessed was made the subject and the possessor took the dative case (as in Latin est mihi liber "I have a book," literally "there is to me a book"). Used as an auxiliary in Old English, too (especially to form present perfect tense); the word has taken on more functions over time; Modern English he had better would have been Old English him (dative) wære betere.

To have to for "must" (1570s) is from sense of "possess as a duty or thing to be done" (Old English). Phrase have a nice day as a salutation after a commercial transaction attested by 1970, American English. Phrase have (noun), will (verb) is from 1954, originally from comedian Bob Hope, in the form Have tux, will travel; Hope described this as typical of vaudevillians' ads in "Variety," indicating a willingness and readiness to perform anywhere.
intolerance (n.)youdaoicibaDictYouDict
"unwillingness to endure a differing opinion," 1765, from Latin intolerantia "impatience, unendurableness, insufferableness, insolence," from intolerantem (see intolerant). Especially of religious matters through mid-19c. Now-obsolete intolerancy was used in same sense from 1620s.
largesse (n.)youdaoicibaDictYouDict
also largess, "willingness to give or spend freely; munificence," c. 1200, from Old French largesse "a bounty, munificence," from Vulgar Latin *largitia "abundance," from Latin largus "abundant" (see large). In medieval theology, "the virtue whose opposite is avarice, and whose excess is prodigality" ["Middle English Dictionary"]. For Old French suffix -esse, compare fortress.
mum (interj.)youdaoicibaDictYouDict
"be silent," 1560s, from Middle English mum, mom (late 14c.), inarticulate closed-mouth sound, indicative of unwillingness or inability to speak. As an adjective meaning "secret" from 1520s. Phrase mum's the word is first recorded 1704.
readiness (n.)youdaoicibaDictYouDict
mid-14c., "state of preparation, preparedness;" late 14c., "promptness;" from ready (adj.) + -ness. As "willingness" from c. 1400.
reluctance (n.)youdaoicibaDictYouDict
1640s, "act of struggling against," from obsolete verb reluct "to struggle or rebel against" (1520s), from Latin reluctari "to struggle against, resist, make opposition," from re- "against" (see re-) + luctari "to struggle, wrestle," perhaps shares a common origin with Greek lygos "pliant twig," lygizein "to bend, twist," Old English locc "twist of hair" (see lock (n.2)). Meaning "unwillingness" is first attested 1660s. Related: Reluctancy (1620s.).
unwilling (adj.)youdaoicibaDictYouDict
early 15c., altered from or re-formed to replace Middle English unwilland, from Old English unwillende; see un- (1) "not" + willing (adj.); see -ing (2). Related: Unwillingly; unwillingness.
willing (adj.)youdaoicibaDictYouDict
early 14c., present participle adjective from will (v.1). Old English had -willendliche in compounds. Related: Willingly; willingness.