burrowyoudaoicibaDictYouDict[burrow 词源字典]
burrow: see borough
[burrow etymology, burrow origin, 英语词源]
burrow (n.)youdaoicibaDictYouDict
"rabbit-hole, fox-hole, etc.," c. 1300, borewe, from Old English burgh "stronghold, fortress" (see borough); influenced by bergh "hill," and berwen "to defend, take refuge."
burrow (v.)youdaoicibaDictYouDict
c. 1600, "to place in a burrow, from burrow (n.). Figuratively (such as to burrow (one's) head) by 1862. Intransitive sense, "to bore one's way into, penetrate" is from 1610s, originally figurative (literal sense, of animals, attested by 1771). Related: Burrowed; borrowing.