Нарыл тут чуднейшую подборку слов по теме недавнего обсуждения в своём ЖЖ.

Из этого будет вторая часть статьи (их трёх частей - статья http://любосвет.рф/post269905003/ будет третьей частью, первой - предисловие)... Вопрос становится накалённее и интереснее.

worship (n.)
Old English worðscip, wurðscip (Anglian), weorðscipe (West Saxon) "condition of being worthy, honor, renown," from weorð "worthy" (see worth) + -scipe (see -ship). Sense of "reverence paid to a supernatural or divine being" is first recorded c.1300. The original sense is preserved in the title worshipful (c.1300).

worship (v.)
c.1200, from worship (n.). Related: Worshipped; worshipping.

worth (adj.)
Old English weorþ "significant, valuable, of value; valued, appreciated, highly thought-of, deserving, meriting; honorable, noble, of high rank; suitable for, proper, fit, capable," from Proto-Germanic *werthaz "toward, opposite," hence "equivalent, worth" (cf. Old Frisian werth, Old Norse verðr, Dutch waard, Old High German werd, German wert, Gothic wairþs "worth, worthy"), perhaps a derivative of PIE *wert- "to turn, wind," from root *wer- (3) "to turn, bend" (see versus). Old Church Slavonic vredu, Lithuanian vertas "worth" are Germanic loan-words. From c.1200 as "equivalent to, of the value of, valued at; having importance equal to; equal in power to."

believe (v.)
Old English belyfan "to believe," earlier geleafa (Mercian), gelefa (Northumbrian), gelyfan (West Saxon) "believe," from Proto-Germanic *ga-laubjan "to believe," perhaps literally "hold dear, love" (cf. Old Saxon gilobian "believe," Dutch geloven, Old High German gilouben, German glauben), ultimately a compound based on PIE *leubh- "to care, desire, love" (see belief).
Spelling beleeve is common till 17c.; then altered, perhaps by influence of relieve, etc. To believe on instead of in was more common in 16c. but now is a peculiarity of theology; believe of also sometimes was used in 17c. Related: Believed (formerly occasionally beleft); believing. Expression believe it or not attested by 1874; Robert Ripley's newspaper cartoon of the same name is from 1918. Emphatic you better believe attested from 1854.

belief (n.)
late 12c., bileave, replacing Old English geleafa "belief, faith," from West Germanic *ga-laubon "to hold dear, esteem, trust" (cf. Old Saxon gilobo, Middle Dutch gelove, Old High German giloubo, German Glaube), from *galaub- "dear, esteemed," from intensive prefix *ga- + *leubh- "to care, desire, like, love" (see love (v.)). The prefix was altered on analogy of the verb believe. The distinction of the final consonant from that of believe developed 15c.
"The be-, which is not a natural prefix of nouns, was prefixed on the analogy of the vb. (where it is naturally an intensive) .... [OED]
Belief used to mean "trust in God," while faith meant "loyalty to a person based on promise or duty" (a sense preserved in keep one's faith, in good (or bad) faith and in common usage of faithful, faithless, which contain no notion of divinity). But faith, as cognate of Latin fides, took on the religious sense beginning in 14c. translations, and belief had by 16c. become limited to "mental acceptance of something as true," from the religious use in the sense of "things held to be true as a matter of religious doctrine" (a sense attested from early 13c.).

trust (n.)
c.1200, from Old Norse traust "help, confidence," from Proto-Germanic *traust- (cf. Old Frisian trast, Dutch troost "comfort, consolation," Old High German trost "trust, fidelity," German Trost "comfort, consolation," Gothic trausti "agreement, alliance"). Related to Old English treowian "to believe, trust," and treowe "faithful, trusty" (see true). Meaning "businesses organized to reduce competition" is recorded from 1877. Trust-buster is recorded from 1903.

trust (v.)
early 13c., from Old Norse treysta "to trust," from traust (see trust (n.)). Related: Trusted; trusting.

true (adj.)
Old English triewe (West Saxon), treowe (Mercian) "faithful, trustworthy," from Proto-Germanic *trewwjaz "having or characterized by good faith" (cf. Old Frisian triuwi, Dutch getrouw, Old High German gatriuwu, German treu, Old Norse tryggr, Gothic triggws "faithful, trusty"), perhaps ultimately from PIE *dru- "tree," on the notion of "steadfast as an oak." Cf., from same root, Lithuanian drutas "firm," Welsh drud, Old Irish dron "strong," Welsh derw "true," Old Irish derb "sure."
Sense of "consistent with fact" first recorded c.1200; that of "real, genuine, not counterfeit" is from late 14c.; that of "agreeing with a certain standard" (as true north) is from c.1550. Of artifacts, "accurately fitted or shaped" it is recorded from late 15c.; the verb in this sense is from 1841. True-love (adj.) is recorded from late 15c.; true-born first attested 1590s. True-false as a type of test question is recorded from 1923.

faith (n.)
mid-13c., "duty of fulfilling one's trust," from Old French feid, foi "faith, belief, trust, confidence, pledge," from Latin fides "trust, faith, confidence, reliance, credence, belief," from root of fidere "to trust," from PIE root *bheidh- (cf. Greek pistis; see bid). For sense evolution, see belief. Theological sense is from late 14c.; religions called faiths since c.1300.

certain (adj.)
c.1300, "determined, fixed," from Old French certain "reliable, sure, assured" (12c.), from Vulgar Latin *certanus, from Latin certus "sure, fixed, settled, determined" (also source of Italian certo, Spanish cierto), originally a variant past participle of cernere "to distinguish, decide," literally "to sift, separate" (see crisis).
Of persons, "full of confidence in one's knowledge or judgment," from mid-14c. Euphemistic use (of a certain age, etc.) attested from mid-18c. Certainer, certainest were common to c.1750, but have fallen from proper use for some reason. Expression for certain "assuredly" is attested by early 14c.

ве́ра
Происходит от праслав. формы, от которой в числе прочего произошли: др.-русск., ст.-слав. вѣра (др.-греч. πίστις), русск. вера, укр. вiра, болг. вя́ра, сербохорв. Bjȅpa, словенск. véra, чешск. víra, польск. wiara, в.-луж., н.-луж. wjera. От общего индо-европейского *wēr- (истина), вероятно, также произошли авест. var- «верить», varǝna- «вера», осет. urnyn «верить». Далее, вероятно, сюда же др.-в.-нем. wâra ж. «правда, верность, милость», др.-исл. vár «обет, торжественное обещание», др.-в.-нем. wâr «правдивый, верный», др.-ирл. fír «правдивый, истинный», лат. vērus «истинный, правдивый», готск. tuzwērjan «сомневаться», unwērjan «досадовать», нем. wahr.