「A horn, horny」or「angle of entry」or「in a recessed nook」that itself uses elements of「head and neck of erection plugging orifice within spread legs」meaning to be gored in one's meat flesh by a horn of some type. Old Chinese meaning of horsing around with a horn acrobatically between one's kicking legs using a dildo at will (see 午「pestle」and 馬「regular masturbation」as the euphemistic「horses」involved between those kicking legs), to THAW, to MELT…finally COMPREHENDING, ENLIGHTENMENT, a sudden realization of the truth, as if restraints are BEING LOOSENED, when a way is discovered that provides a SOLUTION to various problems, to EMANCIPATE and SET AT LIBERTY by UNTYING and UNRAVELLING inhibitions, preparations for a「horny erection reaming nooks and crannies, the recesses of one's important chattel meat, with a talented head.」
　TO UNTIE refers to something that has been tied or bound previously, such as the no-longer-integrated feet of Chinese females who were purchased as one's sexual slave or concubine, assets used as bait by the shamans (魛) and sold or rented for use as goring meat objects during masturbation.
　Some have suggested the potentially obvious meaning of dehorning, a process in which「horns of a head of cattle are cut off」in order to disentangle them from vines, fencing, another animal. However, today as in the past, dehorning is normally a preventative measure performed soon after birth and not remedial, a procedure performed before any tangling occurs. Try to imagine walking up to an angry and frustrated bull that has been entangled by its horns for a few hours or days, and then proceeding to saw them off one at a time, not forgetting that the animal will weigh anywhere from 1,000 to 3,500 pounds (600-1300 Kg):「Is dehorning painful? Yes. The corneal nerve, running from behind the eye to the base of the horn, supplies sensation to the horn. Studies have shown that dehorning stimulates both an acute pain response and a delayed inflammatory reaction.」
　　[　https://www.dehorning.com/faqs/ 2014-03-05　]　
　So, we can be assured that the bull will smile docilely and stand still throughout when you apply the saw to its horn and attempt to steer clear of the vines or 'the other animal' as you begin to slowly grind off small bits of horn…and then wait while you saw off the other one, too? why or how would a bull become entangled by a vine or another animal in the first place, given the shape of its horns? cattle horns are not shaped as are deer or elk antlers, and while possible, the whole scenario is unlikely to say the least. How about all the other listed meanings? melt, thaw, the epiphany? elements seem to depict a DILDO FESTIVAL-CONTEST IN A HAREM cave o' wonders.
　Without a doubt, the Irish also have knowledge of their own to pass along in these trying times:「Masturbation will not spread coronavirus, especially if you wash your hands (and any sex toys) with soap and water for at least 20 seconds before and after.」Nonetheless and regrettably, unlike in dynastic China, it must be undertaken alone to truly be a preventative countermeasure but still achieve the desired result with some degree of safety.
　 　[　https://www.sexualwellbeing.ie/sexual-health/sex-and-coronavirus/ 2020-03-31　]　
　The Dutch, too have the same solution—it seems masturbation has become mainstream in the media the world over due to the coronavirus (it has always been 'the main stream' in reality, albeit covertly for most folks):
　「'Don't have sex with your partner if they have been isolated because of (suspected) coronavirus infection,' the RVIM says. 'Sex with yourself or with others at a distance is possible (think of telling erotic stories, masturbating together).'」
　　[　https://www.theguardian.com/world/2020/may/15/dutch-official-advice-to-single-people-find-a-sex-buddy-for-lockdown-coronavirus 2020-05-16　]　
　Needless to point out perhaps, but Chinese shamans from antiquity hit upon the same solution as a pandemic preventative countermeasure, honed for ultimate client satisfaction by utilizing naked females with no-longer-integrated feet as masturbatory sex buddies available for short-term rental with erotic visualization of live prepubescent female genitalia engaging in autoerotic stimulation herself, as a solution to the same problem facing us now, but in pre-Internet days.

Modern definitions (that generally disregard history) …excluding politically incorrect concepts and other meanings deemed offensive today; may list only pigeonholed definitions, euphemisms, or meaningless mnemonics)
Chinese: acrobatic display (esp. on horseback) (old); variant of 懈 and 邂 (old); to transport under guard; to divide; to break up; to split; to separate; to dissolve; to solve; to melt; to remove; to untie; to loosen; to open; to emancipate; to explain; to understand; to know; a solution; a dissection
Japanese: solution, to untie, to unfasten, to unwrap, to undo, to unbind, to unpack, to unsew, to unstitch, to solve, to work out, to answer, to dispel, to clear up, to remove, to appease, to dissolve, to cancel, to lift, to raise, to release, to relieve, to dismiss, to comb, to card, to untangle, to understand, to appreciate, to interpret, to comprehend, to unravel, to loosen, to break into small pieces, to relax, to ease, understanding, comprehension, to grasp, to see, to get, to follow, to become clear, to be known, to be discovered, to be realized, to be realised, to be found out, fray, frayed spot, to comb out, to melt, to be solved, to come untied, to be removed, to be cleared, to be broken, to come apart, to become frayed, to become loose
Unihan extended: loosen, unfasten, untie; explain
EDRDG: unravel; notes; key; explanation; understanding; untie; undo; solve; answer; cancel; absolve; explain; minute

Used within names (nanori)
さとる　･　とけ