holeyoudaoicibaDictYouDict[hole 词源字典]
hole: [OE] Etymologically, a hole is a ‘hollow’ place. It originated as a noun use of the Old English adjective hol ‘hollow’ which, together with German hohl, Dutch hol, and Danish hul, all meaning ‘hollow’, goes back to a prehistoric German *khulaz. The source of this is disputed, but it may be related to Indo-European *kel- ‘cover, hide’ (source of English apocalypse, cell, cellar, conceal, hall, hell, helmet, hull ‘pod’, and occult). The semantic connection is presumably that a place that is ‘deep’ or ‘hollowed out’ is also ‘hidden’.
=> apocalypse, cell, conceal, hall, hell, helmet, occult[hole etymology, hole origin, 英语词源]
hole (n.)youdaoicibaDictYouDict
Old English hol "orifice, hollow place, cave, perforation," from Proto-Germanic *hul (cognates: Old Saxon, Old Frisian, Old High German hol, Middle Dutch hool, Old Norse holr, German hohl "hollow," Gothic us-hulon "to hollow out"), from PIE root *kel- (2) "to cover, conceal" (see cell).

As a contemptuous word for "small dingy lodging or abode" it is attested from 1610s. Meaning "a fix, scrape, mess" is from 1760. Obscene slang use for "vulva" is implied from mid-14c. Hole in the wall "small and unpretentious place" is from 1822; to hole up first recorded 1875. To need (something) like a hole in the head, applied to something useless or detrimental, first recorded 1944 in entertainment publications, probably a translation of a Yiddish expression such as ich darf es vi a loch in kop.
hole (v.)youdaoicibaDictYouDict
"to make a hole," Old English holian "to hollow out, scoop out" (see hole (n.)). Related: Holed; holing.