fearyoudaoicibaDictYouDict[fear 词源字典]
fear: [OE] ‘Being frightened’ seems to be a comparatively recent development in the semantic history of the word fear. In Old English times the verb meant ‘be afraid’, but the noun meant ‘sudden terrible event, danger’, and it did not develop its modern sense – possibly under the influence of the verb – until the 13th century (the Old English nouns for ‘fear’ were ege and fyrhto, source of modern English fright).

Related words, such as German gefahr and Dutch gevaar, both meaning ‘danger’, confirm that this is the earlier sense (as would Latin perīculum ‘danger’ – source of English peril – if, as has been suggested, it too is connected). Taking the search wider, possible links with Latin perītus ‘experienced’, Greek peráō ‘go through’, and English fare ‘go’ point to an underlying meaning ‘what one undergoes, experience’.
=> peril[fear etymology, fear origin, 英语词源]
fear (n.)youdaoicibaDictYouDict
Middle English fere, from Old English fær "calamity, sudden danger, peril, sudden attack," from Proto-Germanic *feraz "danger" (cognates: Old Saxon far "ambush," Old Norse far "harm, distress, deception," Dutch gevaar, German Gefahr "danger"), from PIE *per- "to try, risk," a form of verbal root *per- (3) "to lead, pass over" (cognates: Latin periculum "trial, risk, danger;" Greek peria "trial, attempt, experience," Old Irish aire "vigilance," Gothic ferja "watcher"); related to *per- (1) "forward, through" (see per).

Sense of "state of being afraid, uneasiness caused by possible danger" developed by late 12c. Some Old English words for "fear" as we now use it were fyrhto, fyrhto; as a verb, ondrædan. Meaning "feeling of dread and reverence for God" is from c. 1400. To put the fear of God (into someone) "intimidate, cause to cower" is by 1888, from the common religious phrase; the extended use was often at first in colonial contexts:
Thus then we seek to put "the fear of God" into the natives at the point of the bayonet, and excuse ourselves for the bloody work on the plea of the benefits which we intend to confer afterwards. [Felix Adler, "The Religion of Duty," 1905]
fear (v.)youdaoicibaDictYouDict
Old English færan "to terrify, frighten," from a Proto-Germanic verbal form of the root of fear (n.). Cognates: Old Saxon faron "to lie in wait," Middle Dutch vaeren "to fear," Old High German faren "to plot against," Old Norse færa "to taunt."

Originally transitive in English; long obsolete in this sense but somewhat revived in digital gaming via "fear" spells, which matches the old sense "drive away by fear," attested early 15c. Meaning "feel fear" is late 14c. Related: Feared; fearing.